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The 10th Teaching, Learning and Assessment of Databases (TLAD) workshop was held at the University of Hertfordshire on 9 July 2012. The University of Hertfordshire is one of those places that I have heard quite a lot about (from some friends and colleagues who have both visited and worked there), but until 9 July, I had never had the opportunity to visit. 

Although databases isn't my core subject it is one that I do have interest in, having been a software developer for quite a few years before joining the university.  Plus, the subject of databases (and their development) certainly crosses over with another big interest of mine, which is the psychology of computer programming.  Enough about me and my interests, and onto a summary of the event.

An effective higher education academy

Karen Fraser, who works in academic development within the HEA kicked off the day.  Karen once worked as a lecturer in computer science at the University of Ulster, before joining the HEA.  Karen talked about the objectives of the HEA and its current areas of focus.  These include the issue of employability amongst computing graduates and also supporting, promoting and developing teaching (and teacher) excellence. 

Other areas of interest include flexible learning, understanding mobility centred learning (a term that I had not come across before), and sustainable development in the sector.  Another area of focus includes supporting institutional strategy and change.

There were two other key parts to Karen's introduction: funding opportunities that the HEA can offer both individuals and academics, and mechanisms to accredit the teaching and skills of individuals.  In terms of funding, there are the teaching development grants, individual grants, departmental bids, collaborative bids and strategic development bits.  Anyone who is interested in finding out more should, of course, visit their website.

In terms of accrediting or recognising individuals the HEA runs what is called a fellowship scheme, where individuals can apply and submit evidence regarding their skills and practice.  I didn't know this (or, I had forgotten), but there is also something called a senior fellow scheme too.  Karen also mentioned the National Teaching Fellowship Scheme (NTFS) and the UK Professional Standards Framework (UKPSF).

On the subject of teaching quality, Karen drew our attention to a report entitled Dimensions of Quality by Professor Graham Gibbs. Apparently one of the main conclusions was that who performs the teaching was considered to be a more important measure of quality than the number of contact hours.

Towards the end of her talk, Karen briefly mentioned something called the HEA's 2016 strategic plan. The key points I noted were the aims to provide effective support to teachers and those involved in teaching and learning, to increase capacity and reward excellence, and offer influence to national policy.

Analyzing the influence of SQL teaching and learning methods and approaches

The first paper presentation of the day was by Huda Al-Shuaily from Glasgow University.  Huda presented what was a small section of her doctoral research. Huda drew our attention to earlier research by Ogden who presented a three stage cognitive model of working with SQL.  These included query formulation, query translation and query writing.  Huda considered that an additional category named query comprehension was perhaps necessary.

For each of these stages, Huda considered different issues.  For successful query formulation an understandable context is necessary (or set of appropriate examples or situations that are used to teach the concepts of databases) to help learners.  For query translation, where students convert queries between English and SQL, the ambiguity of English can be a particular difficulty.  For query writing, knowing something about the strategies that novices may adopt may be useful too; it was recommended that teachers emphasise the 'what' and 'how'.  An important point was: it is perhaps a good idea to teach students to read SQL before teaching them to how to write SQL.

One of the most interesting parts of her presentation was when she began to talk about patterns and SQL.  I have used generic programming patterns and had heard that they have been applied to other related areas such as usability, but never before databases.  Huda mentioned something called a 'self-join' pattern, which is one of a number of patterns that could be taught to students.

The question and answer section immediately opened up a number of interesting debates.  Regarding the subject of patterns there was some debate was to whether we ought to be teaching students general problem solving approaches rather than higher level abstractions such as patterns.  Another debate related to the type of data that we have within our datasets that are used to teach the underlying concepts.  Should we use real data (or, at least, real data that has been manipulated to avoid disclosure of sensitive records), or artificial made up data?

Temporal support in relational databases

Bernadette Marie Byrne from the University of Hertfordshire spoke about temporal support in relational databases whilst at the same time giving us some useful background information and presenting a case study.  Temporal databases were described as databases that are capable of recording what data has changed and when.  Apparently, there were debates were occurring in the SQL standards bodies about extending SQL to cater for temporal data when the focus of discussions changed due to the arrival of XML.  Some database vendors such as Oracle, however, have implemented certain temporal extensions.

A case study that Bernadette describes centres on a motorcycle and cycle hire business.  It is necessary to record when items are hired (and when they are returned), as well as knowing when items are available for hire.  An added complication is that 'partial hires' can be performed: some bicycles can be hired for, say, two days, and then swapped for another to ensure that an original customer hire request is satisfied.

It was clear to me that such a scenario (which I understand was drawn from a real-life situation) was one that was pretty tough to implement and would clearly show the challenges of working with time-centric data.  Another interesting consideration that sprung to my mind is the question of 'where do we write the code?'  In some cases we should rely on the functions of the database to solve our problem, whereas on other occasions we might want to write more program logic to cater for all the different situations that we come across.  Knowing where (and how) to write code is, of course, a part of the artistry of computer programming.

Roadmap for modernising database curricula

Jagdev Bhogal and Kathleen Maitland from Birmingham City University gave a very thought provoking presentation about we need to do, or could do to enhance the current database curricula.  Kathleen argued that databases are ubiquitous. On one hand, you might be accessing a server hosted database through a call from a mobile app.  On the other hand, your mobile app may contain its own database or data store of some kind.

One of the perceived problems is that databases are taught in bite size chunks in isolation from other modules.  Kathleen also argued that ideally modules should be connected together in some way and emphasised the need for different members of faculty should talk to each other.  Getting staff to work together has the potential to help students being able to create a portfolio of work (perhaps even functioning applications) that can be demonstrated to employers.

Employability is, of course, very important and curriculum design should directly address employability skills.  One such skill is that the professional writing and communication.  One approach to develop professional skills is to teach using substantial case studies such as those relating to the retail, banking, and government sectors.  Using case studies opens up the possibility of making use of very large databases and understanding the contexts in which they are situated.

Some topics that may be included in modules can include data modelling, data acquisition, approaches for data storage (including different ways of using mass storage devices, as well as saving data to the cloud), data searching (of both structured and unstructured data), processing, performance and security (which can include addressing subjects such as authentication and defence through depth).

The final conclusions that I've noted are that employability skills are necessarily important and that it is also important to get employers involved.  It is also important to consider how to improve the student experience by creating realistic scenarios. It also helps students to create assessment portfolios which can be used to demonstrate technical skills and abilities.

Research-informed and enterprise-motivated: Data mining and warehousing for final year undergraduates

Jung Lu from Southampton Solent University gave a presentation that focused on the teaching of data mining.  Jung highlighted that students had to consider a number of advanced research topics include XQuery, Weka (data mining), databases in the cloud, Oracle Apex, distributing and replicating data, accessing and manipulating data programmatically, and PL/SQL (Wikipedia) (stored procedures).

I made a note of a key point that related to the importance of practice.  It is necessary to ensure that students have sufficient time and resources to engage with practice activities and tasks before moving onto formally assessed activities.  'Screen time', as I call it, can give students confidence as well as experience that can stand them in good stead when it comes to the work place.

Subjects such as data warehousing and OLAP (Wikipedia) were said to be taught using a case study and a guest lecture (the importance of case studies being an issue that is featured later on within the workshop). Towards the end of the presentation, professional certifications were also mentioned.  Finally, a connection to employability skills, particularly SFIA, Skills Foundation for the Internet Age, was mentioned.  This framework may be able to offer some guidance about which skills may be particularly relevant or useful.

The teaching of relational on-line analytical processing (ROLAP) in advanced database courses

Bernadette Marie Byrne and Iftikhar Ansari both from the University of Hertfordshire talked about how to teach ROLAP, which is a database extension that I had never heard of before.   They began by referring to a very large dataset which had just under a million rows.  Other important considerations included that of performance.

As well as ROLAP being a new term to me, I was also introduced to a second one, which was 'star schema design'.  I think my unfamiliarity with these terms more relates to my background of using small to medium sized databases, rather than large and extensive data sets. One point was very clear: having hands of practical experience was something that was considered to be both important and necessary for students.

Introducing NoSQL into the database curriculum

The first ever database systems I used were based around the XBase language; early PC based databases such as Dbase, Clipper and Foxpro (which was back in the very early nineties).  From there I was introduced to the rigours of SQL, which is one of those languages that I've used off and on throughout my programming career. 

Clare Stanier from the Staffordshire University introduced what was to me a set of new database developments and innovations that has passed me by, namely NoSQL (or, perhaps post-SQL) databases: systems that enable users to more readily store unstructured data, perhaps in the form of documents.  Clare reminded us that that in the early days of databases there were many different types. Over time the SQL-based relational model approach became dominant.  Clare argued that we're now living in a database environment which is increasingly diverse.

The relational approach requires us to clearly structure our data.  Whilst on this can allow us to carry our complex queries, it can be difficult to create databases which can readily accommodate changing types of data.  NoSQL databases (NoSQL.org) permit weaker concurrency models and (I guess) you might also argue that some of them are more weakly typed.

Clare introduced us to a number of different databases.  Two notable ones include MongoDB which is apparently used to drive Craigslist, and CouchDB.  Apparently these two database projects have similar underlying objectives but there is a healthy rivalry between the two groups (which is no bad thing).

Another database (again, one that I had not heard of before) is Cassandra.  NoSQL databases have clearly made it into the mainstream.  Amazon have developed a database called SimpleDB, which can be used as a part of their cloud services.  Of course, cloud based databases have their own advantages and disadvantages, and developers always need to be mindful of these. Another aspect of NoSQL databases is that they have the potential to more readily (and perhaps easily) integrate with internet applications.  With some systems it might be easy to issue queries over REST (Wikipedia), for instance.

Clare made a very good point, which was that the TLAD community and lecturers who are involved in teaching databases and related subjects need to have a debate about what is taught in the database curriculum and the extent to which NoSQL databases need to feature. 

The distinctions between NoSQL and SQL databases remind me of a simplistic distinction between programming languages.  On one hand there are strictly typed languages, such as Java which require you to define everything.  On the other there are languages such as Perl which are weakly typed and allow developers to get into all kinds of muddles (whilst at the same time permitting certain categories of problems to be solved quickly and effectively, when such tools are placed in skilled hands).  There are, of course, other languages (and language mechanisms) in between.  I have little doubt that SQL and NoSQL databases may influence each other, but it remains a programmer and designers challenge to choose the most appropriate tool for the task in hand.

A ten-year review of workshops

David Nelson from University of Sunderland and Renuga Jayakumar from University of Wales Trinity Saint David presented an analysis of papers presented at TLAD over the last ten years.  David also attempted to present his view of what we might have to teach in the future (whilst also accepting that predicting the future is always a dangerous thing to try and do!)

Some of the broad themes that are covered in the workshop have included database design methods, e-learning tools, curriculum research, student diversity and assessment methods.  Some of the very early papers presented techniques for the automated assessment of database designs.  Over the years, technologies such as OpenMark (Open University) have matured.

Since the inception of TLAD, a range of new technologies have emerged and have been increasingly applied in different situations, such as XML.  With XML it is necessary to understand the fundamentals before fully appreciating its significance within the world of databases.  Papers regarding e-learning have included presentations about games, class participation, recording of lectures and how to best facilitate 'out of hours' learning.

Looking towards the future, we might see curriculum changes to take further account of transaction processing, system and data recovery, security, cloud computing and physical aspects of system design.  Mobility and non-relational databases as well as subjects such as data warehousing are considered to be significant subjects.

During the closing discussion, I also noted down the name of a resource that was new to me, namely, the Database Disciplinary Commons which is hosted by the University of Kent.

Reflections

I think this is my second TLAD workshop, the previous one that I attended was held at the University of Greenwich.  I enjoyed my first one and I enjoyed this one too.  I remain of the opinion that databases is a tough subject to teach, but one that is fundamentally very important to computer science education.  Lecturers need to convey fundamental concepts which, to some, may be significantly difficult to grasp.  The challenge becomes even more acute when we move more advanced subjects where issues such as software and hardware architecture need to be considered.  Security, of course, is another topic that is very important and there is a necessary connection between databases and the teaching of programming.

One point that I remember from my own database education (much of it acquired 'on the job' whilst working in industry), was that it became apparent that there were so many different ways to solve a problem.  I remember being presented with different techniques and having to make a decision about how to apply them.  Should I create a database abstraction layer for my application or use stored procedures, for example.  In my programming career I've even seen the horror of SQL intertwined with HTML tags!  Thankfully, the prevalence of design patterns, particularly MVC have gone a long way to emphasise the importance of separating out different aspects of an application.

All these ruminations suggest an important subject, which is how to most effectively convey best practice to our students.  Understanding the most appropriate ways to design systems and databases comes after acquiring fundamental skills.  This again connects to the view that teaching databases is a tough thing to do.

For me, there were two highlights of this TLAD.  The first relates to being aware of more on-line resources relating to learning and teaching (and being introduced to new technical terms), and secondly, being introduced to the concept of NoSQL.  My next challenge is to try to find some time to explore these new software technologies.  I hope I will be able to find the time and opportunity to do this.

Addendum

A few years after publishing this post, I was contacted by a reader, who mentioned that they had a website about the teaching of PL/SQL that contained a number of useful tutorials. If anyone is interested, here's a link to Ben Brumm's PL/SQL tutorials (Databasestar webite).

A HEA workshop held on Friday 9 June at Birmingham City University set out to answer the following questions, 'how important is our online presence to prospective employers?' and, 'what can students do to increase their online visibility?'  Of course, there are many other related questions that connect to the broader subject of online identity, and a number of these were explored and debated during this workshop.

This blog post is a summary of the workshop.  It is, of course, a personal one, and there's a strong possibility that I might not have picked up on all the debates that occurred throughout the day.  If there are other themes and subjects that some of the delegates think I'm missed, then please do feel free to post comments below.

Pushing employability for computing graduates

Mark Ratcliffe from the HEA kicked off the day by talking about the employability challenges that computing graduates face, connecting with his experience as being head of subject at Aberystwyth  University and his work at eSkills.  An interesting point and observation was that demand for computing skills has increased over the last ten years but the number of computing graduates has been reducing.  There is also a gap between computer graduates and graduates from some other disciplines in terms of gaining full time employment six months after graduation.

Technical skills are fundamental and necessary skills, but so are interpersonal and business skills.  Placements were cited as an important way to enable students to develop and to gain first-hand experience.  Technical skills are important, and evidence of them can be gained through application forms and interviews, but also through approaches such as portfolios of evidence.   Evidence of our work and interests is increasingly available to be seen by others through online sources.

The second introductory presentation was by Mak Sharma, Head of School at Birmingham City University.  Mak spoke about some of the changes that were occurring to the institution, and also mentioned a number of familiar (and unfamiliar) technologies, all of which can play an important role in computing and technology education: Alice, Greenfoot, Scratch and Gadgeteer.  An interesting point was the connections between industry training providers and the university.  I sense that collaborations between the two sectors are going to become increasingly important.

ePortfolios in the big bad world

Andy Hollyhead, from Birmingham City Business School started his presentation (Prezi) by sharing with a video entitled Stories of ePortfolio integration, produced by JISC and BCU (YouTube). The video features a demonstration of an ePortfolio system called Mahara which has been linked to the university's Moodle virtual learning environment.

An ePortfolio is, in essence, a tool which can be used to store data, usually documents.  It is also a tool that can have different uses.  On one hand it can be used to help students to reflect on their own studies.  On the other it can be used to share information with a wider community of people, and this may potentially include potential employers. An ePortfolio can also be used to demonstrate evidence of continuing professional development (CPD) within an organisation.

An important question is 'how long can I have access to my data for?' This question is particularly relevant if a university implements an ePortfolio that can be used to create a professional presence and suggests that institutions need to consider policy as well as technical issues.  To circumvent this challenge, standards bodies have proposed standards to allow the sharing of ePorfolios between different systems.  Andy mentioned other systems such as VisualCV and PebblePad.  One of the greatest challenges is, of course, to understand the variety of different ways in which ePortfolio systems can be used.

Using code repositories in programming modules

Whilst ePortfolios can be used to share information and documents, John Moore from the University of West London spoke about the notion of source code repositories and considered how their use may enhance the employability profile of students.

Version control systems are an essential part of the software development process.  The facilitate collaboration and sharing.  They also enable developers to learn how software has changed over time. 

There are, of course, a wide range of different systems, such as CVS and Subversion (Wikipedia).  John focussed on GIT (Wikipedia), which is a distributed version control system that has been created for Linux kernel development.  John also shared with us a number of different public repositories that may be used, such as Bitbucket, Gitorious  and Github (none of which I had heard of before).

John said that 'logs define you as a programmer' (logs, of course, being commit or change logs, recordings of when a programmer has made an addition or change to a repository).  To boost a 'programmer profile', students are encouraged to participate in open source software development.  Not only may this present evidence of technical abilities and understanding, evidence of participation also represents evidence of team skills.

John's presentation gave way to a really interesting debate about how experience and understanding of version control systems represents an important employability skill.  I also remember hearing that students from different backgrounds (and perhaps different undergraduate degrees) have different levels of expertise.  What is without question is that industry makes extensive use of such tools, and it is the challenge of educators to encourage their use.

Student professional online branding

Thomas Lancaster from Birmingham City University introduced us to the notion of a 'personal brand', before describing what we might be able to do to create an online version.  One thing that students could do is create a LinkedIn profile.  Thomas then went onto mentioning tools such as Facebook and Twitter, which can yield potentially more immediate information about a potential candidate. Thomas argued that computing students should ideally have their own professional website which presents an identity whilst also practically demonstrating their technical skills to other employers.

Sharing information online is, of course, not without its risks, and everyone needs to be mindful of this.  One thought is that no-one can say who is going to be doing the next internet search against your name.  Since the web had now become the 'read-write' web, we now need to be careful about what we share, a balancing act between information availability and information privacy, a point that was returned to time and again throughout the day.

Building professional web presences

Building on some of the points that Thomas made, Shovan Sargunam gave us a practical demonstration of how to create an online professional presence, through the creating of a WordPress (Wikipedia) based website.  A couple of the steps included registering your own domain (if it's not too late), then choosing an internet provider, and then installing or configuring WordPress.

WordPress isn't the only way to go.  In some ways, it very much depends on the tools that you are familiar with.  Shovan also mentioned some other useful sites (in addition to LinkedIn) that enables users to create online profiles, such as About.Me and CreativePool.

Student's online profiles for employability and community

Information about ourselves that we share online can have a number of different uses.  One other use lies with the way in which information can be useful in the development of an online community. Karen Kear and Frances Chetwynd from the Open University described a research project that is aiming to uncover more about how online profiles are used by students who make use of online discussion forums.  Research is carried out by through questionnaires and online synchronous focus groups.  There are, of course, a spectrum of different opinions (and practices).  Some students are happy to share information and photographs of themselves, whereas others have concerns about privacy.

Exploring the employer use of professional presences

Vanessa Gough, from IBM, presented a rather different perspective and one that was very welcome.  Vanessa is responsible for industrial trainees and she makes the point that given the number of applicants that are made to IBM, she (and perhaps some of her colleagues) just don't have the time to go rummaging around on the internet for information about candidates.  This said (and these are my own words here, rather than Vanessa's), it doesn't mean that this doesn't happen.

Vanessa described how new recruits can make use of social media to communicate with each other to become increasingly familiar with the organisation in which they work.  Twitter and Facebook can be used to share information about what it is to work and live in certain locations.

A really good point was the social media offers candidates a way to 'get to know' an organisation and begin to understand a bit about its culture.  Engaging with an organisation's social media streams and learning from them has the potential to enable candidates to stand out from the crowd.

How social media can enhance your employability

The final presentation of the day was by Vanessa Jackson, from Birmingham City University.  Her presentation had the interesting subtitle of, 'can you tweet your way into a job?' (which follows on nicely from the earlier presentation).  Vanessa introduced us to a site called SocialMediaTutorials.  This is a set of Open Educational Resources which are available through Creative commons.  One of the videos describes a case where a student was able to gain a work placement or internship by directly contacting people who worked within a local radio station.

Reflections

One term that I had not heard of before, was DPQ, or drunken post quotient (as introduced by Andy Hollyhead).  The higher the metric, the more trouble we might (potentially) cause ourselves.  It was a concept that was immediately understandable, for a number of reasons that I'm not going to go into.

My own personal opinion is that having an online professional presence is a 'good thing', especially if we work within a technical discipline such as information technology or computing.  This said, there are certainly differences of opinion.  Some of us simply don't want to share aspects of ourselves online, and there are good reasons for this, which we should respect.

These thoughts made me consider online presence in terms of a number of different dimensions.  Firstly, there is the dimension of security and privacy, and the tension that exists between the two.  Then there is dimension of the personal and public (or personal and professional).  Coming back to ePortfolios, there's also the dimension of demonstration (of achieve) and reflection (to achieve).  Finally, there is the dimension of the audience - a difference between the general and specific.

Towards the end of the day there were a number of interesting debates.  Two questions that I've noted are, 'how might we embed the notion of professional presence into the computing (and wider) curriculum?' and 'what is the perception of others if one doesn't have an online professional presence?'

An interesting thought is that it's not always what you share on the internet that is a concern - the people who you know may potentially cause some difficulties.  The canonical example of this where a friend or colleague shares pictures of a 'night out' somewhere, the details of which should have remained personal.  A point here is that we all need to be vigilant.  Performing internet searches against our own names (or 'ego-googling') is no longer an activity that can be mildly interesting or titillating.  Instead it could now be a necessity to ensure that correct and appropriate information is available to be shared with others.

For me, one of the outcomes of the day is a reminder that different tools can be connected together.  For a while I used to be an avid Twitter user until I discovered that it was gradually taking over my life and felt that I had to 'reclaim back' some of my privacy.  I've now reassessed my own online professional presence, and what I want to do is use Twitter more as a feed for other social platforms, such as LinkedIn and Facebook.  So, in time, I hope to increase my online visibility - but I am also very aware that I'm unlikely to have a complete understanding of the implications of doing this.  I guess what I'm going to do is to always be careful about what I share and when.

The workshop slides are available (BCU website). Many thanks to Birmingham City University for organising an interesting and thought provoking event!

I had never visited the University of Buckingham before.  It was on the morning of Tuesday 15 May 2012 that I found myself travelling to Milton Keynes railway station to meet with a pre-booked taxi that would whisk me into the unknowns of the Buckinghamshire countryside towards an event that was intended to share practice about the teaching of mobile technology.  Although I had never visited Buckingham, I have heard it being spoken of many times before; a radical institution which was founded at approximately the same time as another radical institution, the Open University. 

As well as sharing practice about the teaching of mobile application development another really important theme was the subject of employability and the open question of whether universities are 'teaching the right stuff' to enable graduates to immediately make a contribution in the workplace.

This blog post is a summary of a visit to a HEA event entitled 'Mobile Application Development: from curriculum design to graduate employability'.  If I've missed any key points, I encourage the fellow participants and delegates to add comments below.

Industry keynote

Lee Stott, an academic evangelist from Microsoft kicked off the day with a really interesting keynote.  Lee is from a part of Microsoft that works with university departments (Microsoft Faculty pages).

Lee emphasised the point that users expect connectivity.  I made a note of an interesting quote that went 'mobility plus cloud equals opportunity'.  It's easy to imagine (or even remember) situations where one gained access to information whilst travelling, solving problem, such as finding an address of a location or accessing some urgently needed information.

Lee also made the point that mobile devices are our predominant work tool (or tools).  A tool, of course, might be a phone or a laptop.  This is certainly true in my case; I often haul my laptop between the OU's headquarters in Milton Keynes and my home, sometimes using the dead time on a train to do some marking.  Another thought that comes to mind is whether mobility is causing work time to encroach on our personal time, but this is a whole other debate (and one that I hope to connect with by writing another blog post about a recent seminar).

The usefulness of an app depends on a combination on its functionality, the functionality of a device and the availability of a network.  To be useful, apps need to be useful but also graphically appealing.  Lee emphasised the importance of designers, not just software designers, but graphic designers.  This connects to an important point which is that creating good apps is an interdisciplinary activity - a combination of technology, business and art. Writing commercial apps isn't just about writing software that works - they need to be 'hardened'; tested thoroughly and be checked for vulnerabilities.

Microsoft, along with other mobile platform vendors (such as Google and Apple) have their own ecosystem of tools, technologies and platforms.  Microsoft is but one of many platforms that educators can choose from.

I have to confess (for my sins) that I used to be a software developer who mostly specialised in Microsoft technologies.  I used to use .NET, MS SQL and a bunch of other stuff.  It has been, however, a few years since I've done this.  Lee introduced new technologies that were entirely new to me, such as Microsoft Azure (wikipedia) and Microsoft XNA (wikipedia) for Xbox.  Lee also mentioned other software that was on the near horizon, such as Windows 8 (wikipedia) which can be used on 'slate' (or tablet) devices.

Lee also touched upon the important subject of recruitment.  Lee emphasised that it is important to encourage students to build apps and sell them through apps market places to create a portfolio which can be shown to potential employers.

The question and answer session was interesting.  There was some discussion about cross platform approaches to development and the fact that when you go cross platform, developers lose some functionality from the original host operating system of a mobile device (or phone).  The subject of native code versus multi-platform code was a debate that arose on a number of occasions throughout the day.  HTML 5 (wikipedia) was regularly mentioned, along with a platform such as PhoneGap (PhoneGap website).

Another tension that exists particularly when industry representatives and university representatives debate curriculum, is the difference between education and training.  Industry wants people who are fully trained (and ideally want universities to do this), but the real role of universities when it comes to technology (in my opinion) is to enable students to effectively know how best to learn and adapt to new tools and situations.  Lee made the point that the teaching of fundamentals is essential.  I agree.  Conveying principles through the use of vendor specific tools whilst presenting concepts in a general way to enable other technologies to be understood is a difficult thing to achieve.

Mobile application development: a journey thus far

Harin Sellakewa from the University of Buckingham gave a presentation that described how mobile technology came to be taught, in its current form, at Buckingham.  Harin described how some of the curriculum had changed and outlined the introduction of new modules.  The use of mobile technology had been explored by a number of various projects, including those that were funded by the EU.

Some of the key learning objectives of a module on mobile software was mentioned: how to design applications (or apps), understanding different components and learning about various guidelines and specifications.  All these learning objectives could then contribute to making an application that could be sold on the free market.

Harin also gave us a number of useful tips.  Any module must (of course) satisfactorily complement any existing modules, also aim to get people involved, speak to different vendors, start with student projects, attend training events that are run through industry and take the time to network.

A number of different topics were exposed through the question and answer session.  As well as a discussion about different technologies, an industry representative mentioned the importance of candidates having a portfolio of work to demonstrate to prospective employers.  One point that stuck in my mind was that an unfinished application has the potential to work against an applicant; showing something polished and complete is necessary.

Developing Apps in Schools

Aaron Peck teaches computing and ICT at the Royal Latin School, Buckingham, a school just around the corner from the university.  Aaron began by speaking about wider discussions about the GCSE computing curriculum, mentioning the OCR GCSE which was said to contain three key components: programming, a research project and an examination.

Aaron emphases fun and mentions the use of the MIT Scratch (Scratch website) environment.  He also went onto speak about mobile devices, a technology that the pupils are invariably likely to be familiar with.   Here lies an obvious collision of ideas: why not teach programming through the use of mobile devices?

Scratch has, of course, some distinct advantages - it is immediate and gets around the tyranny of fiddly syntax by providing students a graphical environment in which they can play.  Another programming environment that has a graphical world is the MIT App Inventor (App Inventor website) which allows users to create apps for Android phones.

Students are encouraged to create small projects, which may include a simple calculator, a recipe book or a hangman game.  The creation of apps has the potential to open up further discussion of wider issues, such as how such developments might be commercialised.  I remember an anecdote from Aaron, where he was asked by a student about how much an app programmer might earn; a testament to his ability to instil enthusiasm and engaging choices of technology.

There were some advantages to using App Inventor; it can be used on multiple development platforms, it is relatively simple to install and given that students may have used Scratch during earlier studies, making the graphical nature of the programming environment to be (potentially) more easily grasped by students.

Aaron isn't stopping at creating apps with App Inventor.  He mentioned his intention to try to work with Lego Mindstorms Robots through the Android SDK, where it might be possible to create a 'remote control' app using Bluetooth radio.  Aaron also mentioned that there was also opportunity to share the workings of HTML and Javascript with his students.  If my memory isn't playing tricks on me, I also seemed to recall that he mentioned that one of his students was inspired enough to use C++.

The question and answer session led us to subjects and technology such as Microsoft Kodu and Micrcosoft Gadgeteer.  Other important issues include addressing the gender imbalance, and how to motivate all student groups, including those who may not have a strong technical bias.

I really enjoyed this talk.  Two big parts of tech were familiar to me: Scratch (or as I know it, Sense), and App Inventor.  Both products are used as a part of different Open University computing modules, TU100 My Digital Life and TT284 Web Technologies.  It was an eye opener, for me, to see how these products could be used a way to inspire students at GCSE level. 

Mobile Assessment

The use of mobile technology to help teaching and learning seems to be a hot topic at the moment.  Joan Lu gave a presentation about the use of mobile technology for assessment and also mentions the use of student response systems making reference to an EU funded project entitled Do-IT.  Joan is from the XDIR research group at the University of Huddersfield which has carried out research  projects related to mobile technology.

Designing the mobile syllabus to enhance student employability

Yanguo Jing from London Metropolitan University gave a presentation about his first hand experiences of teaching about mobile technology to his postgraduate students.  It was a really interesting presentation that was packed with useful tips, not just about teaching but also about industrial engagement too.

Returning to the subject of multiple platforms and environments, Yanguo said that initially he tried to teach a little bit about all the major toolsets.  He came to the conclusion that this was less than ideal.  Although students might be given breadth, getting to the 'depth' is always a challenge.  It was decided, therefore, to focus on one particular platform and use the experience with the platform to make points that are important in other platforms too.  This is a very sensible practical decision; there is only so much detail that a lecturer can hold in his or her head at any one time.

Understanding mobile isn't just about understanding technology and the fundamentals of creating some executable code that runs on a device, it is also about understanding the surrounding business and economic area.  Connecting back to the ideal of creating marketable Apps that Harin touched upon in his earlier presentation, Yanguo said something about how he encourages his students to enter application competitions, or Appathons.  He also mentioned that students were also encouraged to attend an industry conference, DroidCon, to gain first hand experience about what is happening within industry.  It was interesting to hear that Yanguo is a part of an industry liaison group.  Not only does this facilitate a connection between academics and industry, it can also act as a connection between industry and students too.

Finally, it is also perhaps worth mentioning that Yanguo is helping to organise a related HEA event on mobile technology on 15 June 2012, entitled Workshop on Teaching and Learning Programming for Mobile and Tablet Devices.  It sounds like it's going to be a great event!

Programming with iOS

Gordon Eccleston from Robert Gordon University, Aberdeen shared some of his experiences of teaching using Apple's iOS.  This platform enabled students to learn something about HCI principles and also about object-oriented programming (through the use of Objective-C).

Gordon offered a key tip which echoed earlier discussions in the event.  He said, 'keep your modules as generic as possible'.  Inspiration and information that informed the creation of his module included looking at different text books and short courses that were designed for industry.  Studying the documentation provided by the vendor can be a very useful source of materials that can help to guide or inform the creation of aspects of a module.

Gordon spoke about lab based teaching (in a lab containing lots of Apple kit) and student course work.  Gordon then went onto present a brief overview of a number of different student projects.  The use of projects cannot be understated.  A good project connects the technology with broader issues of business and also helps to give the student some good materials that can be immediately demonstrated to a potential employer (I have this image of an interviewee handing their phone to an interviewer whilst saying, 'this is what I've done).  One project that stuck in my mind was an app that illustrated a fashion portfolio which demonstrates a connection between apps and marketing.

Gordon's session inspired a really interesting question and answer session.  One point was that PC (or Mac) based simulators are all very well, but it's also important (as well as rewarding) to allow students to run their software on actual devices (such as an iPod touch).  For one thing, it allows the developers to gain access to device only peripherals, such as accelerometers and other sensors that they wouldn't otherwise have access to.

Reflection of curriculum design and delivery in mobile computing

Khawar Hamed from the University of Staffordshire spoke about his experiences of curriculum design.  Khawar's presentation reminded me an app is at the top of a technology pyramid.  Along with the operating system of a device, apps are perhaps the most visible software artefact that users interact with.  Underneath the app and beyond the phone there is a sophisticated digital infrastructure that enables devices to work.  Some of the modules that Khawar mentioned allow students to begin to study these underlying technologies.  Another point is that mobility isn't just about technology, it's also about enabling organisations to achieve their objectives.

Khawar touched upon other issues such as the importance of getting the right name for a course or programme.  Since the names and phrases used to describe technology can change relatively quickly, perhaps the names of modules and programmes should be prepared change too?   An important point was to always seek industrial involvement wherever possible.  Connecting to this point, Khawar mentioned an organisation called The Wireless University Forum.

One really interesting debate that emerged from this presentation centred upon whether an institution should provide devices that students can transfer code to.  The answer was a resounding 'yes'.  Not everyone will have an Android phone, or an iPhone (or even a smartphone, although this is something that is changing).  Plus, providing a device delineates between what is a 'learning' device and what is a 'personal' device.

Mobile app development - creativity, skills and evidence

The final talk of the day was a second keynote.  Andrew Lapham, from Yell Labs gave an enthusiastic presentation about the work that his team carries out and what characteristics in potential employers he is looking for.  Key points include the ability to be creative and generate new and interesting ideas, strong communication skills (the ability to communicate those ideas and to persuade others of their merit), and an underlying enthusiasm for technology and what it might be able to achieve.

The notion of having a portfolio of evidence was also touched upon.  Whilst demonstration of apps or talking through a pet project is impressive, what is more impressive is having evidence that your own product or code has been marketed.  This might include having a blog about a product, and also gathering some evidence about how your customers view your product.

Reflections

There was one thing that surprised me about this day which was an exceptionally strong focus on apps.  In retrospect, it shouldn't have been a surprise at all.  Apps are the way to consume software on mobile devices.

I certainly sense that teaching programming for mobile devices isn't easy.  Each platform comes attached to ecology of tools (and a whole set of accompanying vocabulary) and techniques.  Teaching everything just isn't an option, but teaching in depth is surely the right way to go.  Educators will therefore have to choose a platform and figure out how to connect a technology choice to wider principles to enable graduates to more readily get to grips with the new environments they will inevitably face.

One really interesting question is whether mobility and the technology that goes with it is changing software engineering?  It's not a question seems to have an easy answer, but perhaps user based apps require different design methods than the lower level software that support the networking infrastructure and perhaps those who have stronger connections with the industry would be able to comment.

A final reflection relates to the creation of a portfolio that can help during the recruitment process.  The importance of a personal portfolio was emphasised in a recent HEA event at the University of Greenwich about gaming and animation.  Employers like to see what applicants have done.    Furthermore, it offers opportunities to allow employers to find out about the difficulties that applicants face and how they were overcome.

When it comes to being an app developer, the message was clear: a portfolio of well-crafted working apps was clearly something that employers would like to see.

Congratulations to Buckingham for running a fun and thought provoking event!

This might sound like a confession, but when I was living the life of a computer scientist (and being a programmer in industry) the term 'pedagogy' remained puzzling for me for quite some time.  Of course, I understood the terms 'teaching' and had an interest in the cognitive psychology of learning, but it took me some time to see what became obvious: that pedagogy is all about choosing and making effective use of appropriate teaching techniques (given the tools at your disposal and those who you are teaching).  I then realised that in science, you might share results from experiments.  In education, on the other hand, you might share practice (or stories) from teaching experiences.

This HEA workshop, held at the Salford University Business School on 19 April 2012, was all about pedagogy and a particular pedagogic approach named, inquiry based learning (Wikipedia), a subject that has been explored within the Personal Inquiry (PI) project carried out within the Open University's Institute of Educational Technology.

This blog post represents my own take on the event and includes a number of highlights.  I began the day by knowing only a tiny amount about what inquiry based learning was, and ended the day knowing a lot more (whilst at the same time beginning to appreciate a lot more about the different contexts in which I might be able to use such an approach).

Opening

We (the workshop delegates) were immediately presented with a number of questions, which were:

• What are the challenges of engaging independent learning?
• How do we foster independent learning?
• Information overload: what skills do students require to navigate the labyrinth of on-line information sources?

Assigned to small groups, we collectively came up with a set of answers.  The challenges were considered to be stimulating engagement, developing motivation and dealing with group dynamics.  Fostering independent learning is achieved by exposure to different examples, facilitating access to technology and encouraging reflection.  Finally, handling information overload is achieved be helping students to evaluate (the validity and usefulness of) source materials.

An interesting point that was raised was that students are increasingly equipped with their own technology, such as laptops and smart phones.  The challenge might no longer be the access to technology, but instead how to get the best out of what they have at their disposal.  This connects to the notion of pedagogy and also to the subject of classroom response systems, which has been discussed in earlier HEA STEM conferences and workshops.

The talk bit

Before we moved into the main section of the workshop, Jamie Wood from the University of Manchester gave a short presentation about what Inquiry Based Learning (IBL) is all about.  IBL is a pedagogic approach that emphasises and draws upon students' capacity to construct knowledge.  It is about investigating authentic open-ended questions (and knowledge construction) and helping to adopt practices of scholarship and research to actively explore and develop a knowledge base.  It also encourages peer-to-peer (student and staff) collaborations and creates opportunities to share results with others.  (Jamie references the work of Phillipa Levy, from the University of Sheffield as well as a HEA report entitled Developing undergraduate research and inquiry).

IBL isn't just about the gathering of facts.  It is also about developing and acquiring a philosophy of knowledge and helping learners to ask the fundamental question of 'what' and 'why'.  There are, of course, strong links to employability skills.  Whenever employees start in a new role or job, new territories and domains have to be negotiated and mastered.  IBL also emphasises collaboration and working with others.  Again, this links back to central ideas of scholarship and knowledge construction: discovering new knowledge is more often than not considered to be a 'team' sport.   IBL is also an approach that can help to develop confidence amongst learners and their problem solving abilities.

IBL was compared to another approach, which is known as Problem Based Learning (PBL).  PBL is considered to be more focussed, and had less of the open-ended character.  PBL could be considered as a subset of IBL, it was argued.

Setting context

In computing, what kind of inquiries might we be able to carry out with our students?  Maria Kutar, from the University of Salford Business School gave one example.  Maria's students are faced with the challenge of understanding the data protection act.  One approach is to read through a text book and perhaps have a group discussion about what is known about the legislation and how it might work.  Another approach is to attempt to explore how the legislation can be used to acquire real information.

Maria's students are encouraged to go out and be filmed on CCTV and then explore (or inquire) about how to view the data (or video) that has been captured (Information Commissioner's Office) .  Such an activity firmly 'situates' the legislation in the context of use, making it more tangible (and therefore understandable).  The activity is also about learning about how the legislation works in practice.  In doing so, students can understand more about what is and is not possible and gain a further understanding of the responsibilities of public authorities.

One might be tempted to argue that such an inquiry might place a burden on those who are asked for the CCTV footage, and this might be a fair point.  However, users of CCTV are compelled to adhere to the law.  Furthermore, the challenges of extracting information from an authority can lead to many interesting debates.

Our Inquiry

When we had been questioned, talked to and given some background information by way of Maria's example, it was our turn to participate in an inquiry (this bit was a total surprise to me!)  Our brief was to go out into the surrounding environment of Salford Quays and MediaCityUK (Wikipedia) and answer to the question, 'how do you find out things that you don't already know?'  (a meta-inquiry)  It didn't take long until the true significance of what was being asked of us began to sink in and I began to myself, 'so, does this mean we've got to go outside and ask people who we've never met this question (whilst wearing a badge)?'  I rapidly acquired feeling of dread, mixed with a touch of despair.

With three competitive teams set, the team that I belonged to rapidly devised a research strategy and swiftly dealt with the issue of socioeconomic and geographical sampling.  We then split into two sub-teams and rapidly began to explore the environs beyond the classroom, armed with a notepad, some charm, a mobile phone (with embedded camera) and a small block of post-it notes.

Our learning visit

We set off across Salford and headed towards the Imperial War Museum North, situated on the other side of the Manchester ship canal.  En route we gently asked our first set of subjects: a set of day trippers who were more than happy to help out.  We then went inside the museum and spoke to some of the people at the reception.  This led to a 'snowball effect'; one participant led to another.  Speaking with some of the newer volunteers led us to speak to some of the more experienced volunteers. 

We quickly realised that we were being exposed to some of the techniques the museum used to help its visitors to 'find things out'.  We discovered display exhibits with gas masks, spaces where films could be shown and found opportunities to share experiences and stories with those who volunteer for the museum.

During our inquiry journey, we made notes and took some photographs, documenting our journey and capturing evidence as we went about our exploration.  Our reflection on our data gathering techniques (and whether they worked) was an integral part of our inquiry too.

Our presentation

After returning from our expedition, each group was told to create something, a PowerPoint presentation or some other artefact to represent the discoveries that we had made.  Our group (along with the others) chose to create a 'post-it note' centric PowerPoint presentation, which summarised our key findings.

In our presentation we just didn't concentrate on presenting our findings on how people find things out (the internet is used a lot, and people ask other people), we also considered what we had learnt from the whole experience of 'going out there' and attempting to discover new things.  We discovered that our inquiry was immersive, sensory, simulating and provoking.  By its nature it was non-linear; we used opportunity to uncover new ideas and followed new directions.   Our inquiry took place over a number of different episodes, where the episodes took upon their own character and had their own themes.

We discovered that an inquiry could be social, but also make use of artefacts.  We had been shown physical objects during our visit to the museum and had heard some interesting stories.  On the subject of stories, people who visited the museum (those conducting an inquiry) might be able to help those who worked at the museum new things.

In some respects there was a blurring of distinction between those who set then inquiry (those who were the teachers), and those who returned with results (the students).  All should be considered to be co-investigators and those who set the inquiry should be prepared to be surprised by the new knowledge that is found and the variety of the findings that are uncovered. 

Our presentation ended with a quote from one of our team members (but it can also be attributed to Confucious) which seemed to echo what we took to be an important essence of inquiry based learning: 'Tell me something, I shall forget.  Show me something, I shall remember.  Involve me, I will understand'.

Reflections

Attendance at the workshop made me ask the question, 'is there a set of inquiry-based learning exercises that will work well within IT, computing or computer science?'

I sense that it really comes into play when we are exploring the intersection between people, technology and society (which is an important aspect of Maria's earlier example).  Perhaps IBL might be used to explore the attitudes that people have towards technology and its impact on the lives of the users.  The environment that we may wish to study may be wider than just the immediate vicinity or campus.

There is also a link between IBL and the pedagogic philosophy of constructivism.  Constructivism, as I understand it, is all about creating an environment (this might be physical or virtual) to enable learners to discover facts for themselves (as opposed to them just being passed on).  Through IBL, the facts that are discovered (and then debated afterwards) are 'owned' by those who discovered them.

IBL, however, is a tool and it should be situated alongside other types of pedagogic activity.  The choice of whether to use IBL in a particular learning programme (or learning design) may be dictated by a combination of the needs of a particular subject area or discipline, human and financial resources (which might also include access to a physical environment), as well as pedagogic expertise within a particular institution or community.   I sense that a change to any of these dimensions may necessitate a change to an overall design (including a change of focus in a particular subject area).

Before this event I hadn't given much thought to Inquiry-based learning, even though I have been aware of the term for a number of years.  My own teaching practice is mostly centred upon a small number of face to face sessions and how best to offer support and guidance to students at a distance.

For me, this workshop has achieved two things.  Firstly, it has increased my awareness of what IBL is (although I've still got some figuring out to do about how to best use it in my own subject), and secondly, it pushed me a little bit outside of my comfort zone.  That, I believe, was entirely the point.

Acknowledgements

Our inquiry team comprised of Mik, Henry and Phillip, all from the University of Salford.

If someone had told me that last week I would be hearing anecdotes about the Russian space programme, learning about muscle wastage in zero gravity and discovering that there is a type of rocket engine that is powered by a combination of rubber and hydrogen peroxide, I would not have believed them!

This blog post is all about a recent visit to the HEA STEM conference, held between the 12-13 April at Imperial College London.  STEM is an abbreviation for Science, Technology, Engineering and Mathematics.  This aims to be a reflective post, to complement a live blog (HEA website) and corresponding twitter feed that was written throughout the two days of the conference.

STEM is a concept that embraces a significant number of disciplines, ranging from psychology through to the physical sciences and engineering.  I should add that I only attended the computing discipline strand (although all delegates were encouraged to be multi-disciplinary and attend others).  What follows is a summary of some of the highlights followed by an attempt (in my own relatively clumsily worded way) to present some personal reflections on what happened during the conference.

Introductions

The conference was opened by Janet De Wilde head of STEM at the HEA.  This was followed by an address by Professor Craig Mahoney (Chief Executive of the HEA).  Craig emphasised the necessity of a skilled workforce and mentioned a recent enquiry in the House of Lords which aims to explore why so many STEM graduates don't end up working in STEM jobs, but industry claims that there is a skills shortage.  Craig's overriding message for the conference was to look forward, be positive and to be creative.

The final introductory address was by Professor Steve Swithenby from the Open University. Steve emphasised the importance of working between and with different disciplines and asked the question of how we might sustain both discipline based and interdisciplinary research?  The answer: talking to people.  This was expressed as an implicit (but important) theme to the conference.

First day computing presentations: morning

There were two parallel computing streams.  To get the best out of the conference I chose what to go to using a heuristic based on interest and familiarity (specifically choosing subjects that I didn't know too much about).  In the morning of the first day I opted to attend the 'innovative practice in teaching and assessment' strand.

The first presentation was by Mark Kerrigan from the University of Greenwich.  Mark's presentation was all about the use of digital tools (such as Skype, blogging tools and so on) and how they might potentially be used through different phases of a programme of study.  Mark's introduced the Google motion chart, a tool that I had never heard of before.  Other resources that were mentioned included the JISC Escape project and Mapmyprogramme.

The second presentation, 'Enhancing small group teaching and learning using online student response systems' was by Harin Sellahawa, who introduced us to the EduMecca EU project.  There are those student response systems that use dedicated hardware and those that use the hardware belonging to students (i.e. their own smartphones); the EduMecca SRS, as far as I understand, makes use of the student's own smartphone.  Some of the challenges of using WiFi enabled smartphones being that some students might not have them, not all classrooms might have WiFi signals (although I'm sure this is changing), and even if they do, there might be reliability issues.  The pedagogic issues are just as important as the technical ones; whilst SRS systems may permit anonymous voting (permitting the quieter learners to more readily participate), the use of smartphones in class has the potential to be disruptive.

Virtual worlds were all the rage a couple of years ago, mainly due to the emergence of SecondLife which enabled users to create their own worlds and environments.  Educators were quick to consider whether such a tool would be useful for teaching and learning, and it was good to see that Colin Allison gave a short talk to bring us up to date on the developments within this area.  Colin's talk covered a couple of key points. 

The first main point is that it seems that open source virtual worlds, particularly OpenSimulator (or OpenSim) appear to be maturing.  One particularly interesting fact was that there appears to be protocol and scripting language compatibility between OpenSim and SecondLife.  One of the biggest risks of using SecondLife for education is that there is the possibility that LindenLabs could change 'the rules of the world' at any time.  Another argument is that you potentially expose students to a myriad of crazy and inappropriate distractions that can be easily discovered in SecondLife.

The other main point was the potential uses of a virtual world.  Colin gave a number of examples.  These included algorithm animation, the creation of learning resources in virtual spaces (such as a 'WiFi island', to convey principles underpinning this particular technology), as well as non-STEM subjects, such as a virtual reconstruction of St Andrews Cathedral.  More information can be found through the St Andrews OpenVirtualWorlds blog.

The morning session concluded with a brief poster session, where each presenter had to give a two minute impromptu presentation about why their own poster was worth a visit.

First keynote: Project bloodhound, Wing Commander Andy Green OBE

I always sense that giving a keynote speech at a conference is a pretty tough task.  A speaker should ideally present a subject that can connect with many of the debates that may occur throughout a conference, pose some challenging questions, and ultimately leave the audience inspired and energised.

Andy Green's fundamental question was, 'is it possible to build a car that runs at 1,000 miles an hour?'   His answer was, in essence, 'there are a bunch of people who are trying to do just this, and I'm going to be the driver'.

This is all very well and good, but how does this connect to STEM?  Andy offers a multitude of answers: designing a car requires engineering (obviously), copious amounts of computing power, a good amount of satellite imagery and a generous application of many of the STEM subjects (such as physics, chemistry, biology, psychology, and so on).  Much of the connections can be seen through the Project Bloodhound SSC website (SSC being an abbreviation for Super Sonic Car).

Andy asked the audience, 'to make this car work, what problems do we have to solve?'  There was no shortage of answers.  The main one was 'keeping the car on the ground'.  Others were 'how to store the fuel, how to deal with heat, how to stop it, how to build the wheels...'  Many of the problems gave way to a brief presentation of some of the hard technical issues that have to be dealt with.  Computational fluid dynamics was mentioned, along with rocket science and how tough manufacturing challenges were being addressed.

Another question is: 'why do it?'  One answer is that the existing record is currently under threat by other teams.  Another connection question might be, 'why build a car that goes 1K mph when there are other bigger humanitarian problems to be solved?'  This is a fair question, but solving any technological problem requires a degree of design and innovation.  I personally feel that it is not (always) useful to make a judgement about what is a 'good' or a 'bad' problem to solve.  The innovation that occurs in a 'bad' problem might find its way to helping to find a solution for a 'good' problem.

Bloodhound SSC is described as an education project as well as a land speed record attempt.  It achieves this by providing many aspects of the design available for everyone to see.  Another dimension of the project is that on the day of the record attempt, telemetry data will also be provided for followers to see.  Computing is a subject that features from the initial design and operation of the car through to sharing of information about the project and the data that the project generates.

I have to admit that the talk was pretty inspiring.  Am I now more interested in subjects such as materials engineering and the chemistry of rocket propulsion?  I'll be lying if I said that I didn't (I admit to being somewhat more interested than I was before Andy's talk).  The biggest impact of the keynote, for me, wasn't so much the detail about the car, but the idea about the educational aims of the project.  This got me thinking.  I asked myself, 'what kind of project could I be involved with that might inspire people to take up (my special bit) of STEM?'  With this in my mind, I guess the keynote worked a treat.

First day computing presentations: afternoon

During the afternoon I split my time between two sessions, beginning with 'enhancing the employability of computing students' and then moving onto 'innovative practice in teaching and assessment'.

The first afternoon presentation, entitled 'understanding difficulties with generic conceptions of employablity' was presented by Martyn Clark.  The key point that I took away from this presentation was a very important one.  Simply put, different organisations have different cultures; one student may more readily fit into the culture of one organisation rather than another.  This raises the problem of how do we try to prepare students for the world of work when there is extensive variability?

The second presentation in the theme of employability was entitled, 'the inspiring teacher in computing' by Alistair Irons, University of Sunderland.  Alistair's presentation connected strongly with the keynote.  This reminded me of a sub-discipline of computing which can be broadly entitled 'computer science education'.

Being inspiring is, of course, important when it comes to student retention.  If one is not inspiring, learners may lose a lot of their motivation.  Alistair challenged us to consider what 'is not' inspiring.  The bullet point list of items make for an interest read: PowerPoints, lectures that are filled with loads of facts (which may make them tough to understand), lecturers being unprepared, lecturers who talk in monotone, lectures that are boring, lecturers who give the impression that they don't want to be there, and teachers who talk down to the students.

All these points are pretty negative, so how about considering the other perspective of what makes an inspiring lecturer?  Again, I can summarise by presented a bulleted list.  Key points are: lecturers who appear to be comfortable and are enthusiastic, who know their stuff and are willing to help, are friendly and approachable, make good use of humour and make good use of stories.  There was the comment that all these points could be compressed or summarised into three key points.  These are: personality and authenticity, experience, and finally, approaches and methods used.  To me, one point stands out, and that is authenticity and its sister attribute, humility.

A change of session led me to join Thomas Lancaster's presentation about contract cheating.  Contract cheating is where you pay someone else to write your assignment for you, passing it off as your own work.  One advantage of using this approach is that because the work is original (even though it isn't yours), it will not be detected by the usual plagiarism detection systems such as TurnitIn.  Thomas presented an interesting and slightly alarming summary of his (and his colleague's) analysis of sites that offered 'essay writing services'.  It struck me that the university sector has now entered an arms race; universities need to apply ever more sophisticated technology to detect cheating that may be facilitated through new ways of using technology.

At the end of Thomas's presentation a question was asked about whether software might be able to detect a 'step change' in the grammatical and linguistic style of submissions from students.  There are a couple of challenges of such an approach.  Firstly, to do this accurately you need a fairly big sample of texts.  Secondly, the writing style of students is likely to change and develop as they gain more experience.  I feel this will remain a challenge for computational linguists for some time to come.

Karl Stringer presented, 'A googlemaps feedback system implemented with Blackboard'.  Karl described a system where exercises (for a module entitled 'using the web') are mapped onto locations on a Google map, adopting a simple metaphor of a walking trail.  One of the really good points of this approach (ignoring the Blackboard dimension of the implementation) is that it makes use of software that is free to use, and helps students to understand what the current generation of web-based tools are capable of.  It was also thought provoking in the sense that it takes advantage of how we can remember maps through our spatial and visual memory.

The final presentation of the computing strand was by Peter Thomas from the Open University.  Pete described a tool that enables diagrams to be automatically assessed.  This means that a student may draw a diagram using a tool which is hosted within the Open University's implementation of Moodle, and the resulting diagram will then be assessed against a set of pre-defined answer.  Pete commented that the system he presented could cater for many different types of formal diagrams (which could include entity relationship diagrams and spray diagrams) and the marking accuracy was as good as human markers.  He also challenged us to send him diagrams which we thought the system might not be able to handle.

Second keynote: The next small step, Kevin Wong

We were asked to consider the story of Ferdinand Magellan, the Portuguese explorer who led an expedition which circumnavigated the globe.  Magellan began with five ships and 237 men.  Magellan didn't make it back, but eighteen men did.  In the expedition all but one ships were lost, and 80% of the crew, facts which were surprising and shocking.  This emphasised the point that exploration is difficult.  It is difficult for a whole host of different reasons.

Kevin Wong is an astrophysicist and medic who worked for NASA.  Kevin's talk focused upon the challenge of a manned space flight to Mars.  After telling us about Magellan, Kevin then went onto present a concise and compelling history of space flight, firmly situating its history in the context of the cold war.  Whilst talking about the Apollo programme, we were reminded about Kennedy's defining speech at Rice University, 1962.

Kevin presented a number of questions which he tried to answer.  The main ones that I remember are: why go to Mars?  And, what are the main problems that we have to solve?  Other than being a project that is likely to inspire and facilitate the development of new technologies there is the fundamental question of life itself.  If there is no evidence of life, of any kind, on Mars, then this makes our humble planet all the more special.

Moving onto the problems, different mission options were described to us and one of the best options is likely to take two and a half years, with some considerable time to be spent on the surface of Mars.  Spaceflight exerts a huge physiological and psychological toll.   Without gravity, muscle and bone wastage is extraordinary, not to mention the increased risk of cancer due to exposure to radiation.  Astronauts will be confined in small uncomfortable environments for considerable lengths of time without the creature comforts and the luxurious opportunity for social interaction that we have on earth.  Human exploration of space, it is emphasised, is difficult (which, of course, is an understatement).

Kevin's talk concluded with the sharing of an image of a craft that could solve the challenges that weightlessness causes: a structure the size of the London Eye that rotates around 4 times a minute, which is enough to create artificial gravity through centrifugal force.  It could be built with materials that get stronger when they are subjected to stretching forces (if my memory serves me well!)  At the end of the second keynote Kevin was asked the ultimate question, 'if asked, would you go to Mars?', to which he responded, 'I would go to the moon... but Mars is something totally different'.

Second day computing presentations: first session

For the first part of the second day, I attended a workshop entitled, 'embedding employability attributes into the 1^st year curriculum' by Paula Bernaschina and Serengul Smith, both from the University of Middlesex.  We were introduced to the CBI employability skills, something that I had never heard of before.  These skills were not specific to any specific discipline or subject.  Key skills related to: self-management, team working, problem solving, application of IT, communication and literacy, application of numeracy, and business and consumer awareness.  We were given the challenge of how to create activities that address each of these points.  More information about these skills can be obtained by viewing a report that can be downloaded from the CBI (Confederation of British Industry) website. Towards the end of the workshop, a question was asked as to whether there were any other employability guidelines that module designers might potentially use.  A personal view is that any skill that is developed within a module (or series of modules) always needs to be contextualised to ensure that its purpose and use is clear and its industrial relevance explained.

Second day computing presentations: second session

The final discipline specific session of the day comprised of a series of four presentations.  The first was by Jose-Luis Fernandez-Vindel and Tina Wilson (from UNED, in Spain, and the Open University respectively).  Jose spoke about the challenges of translating Open Educational Resources (OERs), which is akin to the problem of software localisation (Wikipedia), and connected the problem to the domain of learning (or instructional) design, mentioning a design tool called Compendium LD (Open University website).

The second presentation was by two Open University colleagues, Frances Chetwynd and Chris Dobbyn.  Frances and Chris have been involved with the production of a new first level introduction to computing module, entitled TU100 My Digital Life.  Their presentation, entitled 'consistency v autonomy: effective feedback to a very large cohort' aimed to share practice and experience in relation to developing and enhancing feedback that is given to students.  Since TU100 is a first level module, the issue of skills development is considered to be very important (to aid progression to later levels). 

One of the challenges of teaching some aspects of software design and computer programming is making use of compelling examples that are rich enough to get students to think.  Nicola Whitehead from Swansea Metropolitan University shares the perspective that when it comes to teaching how to create a use case (or a set of use cases), the canonical example of a student information system doesn't really offer too much in the way of inspiration.  Nicola introduces the card game Fluxx (Wikipedia) to her students and challenges them to use it to extract some use cases.  Fluxx is cited to have the advantage that it is unfamiliar enough to facilitate debate, and complex enough to create some sufficiently challenging use cases. 

The final presentation was by Paul Neve from Kingston University.  Paul made a compelling argument that skill development in computer programming is discontinuous, i.e. it happens in 'light bulb' moment jumps, where insight and understanding is suddenly gained after periods of gaining experience and considering different approaches (or 'banging ones head against a brick wall').  Building on teaching experience gained at Kingston, Paul described a web-based system where the student is taken through a series of challenging activities and assignments.  Paul was keen to emphasise the importance of a lecture as an event that 'frames' the problem or describes the tools that are used to deliver programming activities.

Panel discussion

Much of the time left for the panel discussion was given over to the audience to raise points make contributions.  Before this occurred, representatives of 'lunchtime meeting groups' were asked to feedback on key issues that they felt relate to STEM.  I've noted down a number of key themes.  These were technology and its use and how this relates to pedagogy and the sharing of practice.  Other themes were the importance of the student experience and how to facilitate interdisciplinary research and projects.  There were was also comments about wider involvement and engagement, with reference to policy makers and industry.

One comment from the audience jumped out at me, and this related to not only to the theme of student experience but also the theme of pedagogy.  This was that we should feel free to draw upon the experience of education at other levels.  It struck me that interdisciplinary isn't a single dimension of 'subject'.  The other dimension is that of the 'level' of study.  The point being that we should learn the lessons that have already learnt by others to ensure that we can uncover and develop the best opportunities for teaching and learning.

Reflections

This is the first big HEA conference that I have attended.  This is also my first STEM event, where experts in different disciplines come together, so I wasn't quite sure what to expect.  The computing strand contained some really good stuff, especially the session on what makes an inspiring (computing) teacher; this was certainly very thought provoking.

Two general points come to mind.  The first is that I did feel that there could have been more formal opportunities to meet colleagues from other disciplines.  The second was that there might have been more of an opportunity to share 'war stories', about challenging (or innovative) teaching practices, to learn what went well and what didn't.

I do feel that there is something positive about the notion of STEM.  The shared principle (to me) seems to be the use of knowledge and skills to solve problems and to do interesting things that may benefit industry and wider society.  The challenge (again, this is my own view) is trying to focus attention when members of different disciplines might be looking in slightly different directions (in terms of their own subjects).  This is certainly something that was reflected in the panel session with the comment, 'there needs to be opportunities to find the spaces to have conversations'.  From conversations might become focus and further opportunities to develop further ideas and learn from the experiences of our peers.

All in all, a fun event.  A good venue and cracking keynotes, all coming together to create a thought provoking couple of days.

A HEA sponsored workshop that is to focus on the teaching of interaction design, usability and user experience is to take place at the Open University in Milton Keynes on 27 June 2012.

The workshop aimed to bring together academics and teachers with the view to sharing experience and best practice.  More information is available from the HEA website but the key themes and principles behind the workshop is described below.

Interaction design, usability and user experience

Human-computer interaction (or interaction design, as it is now known) is a subject that touches upon so many different areas of computing; it impacts on areas such as web design, the design of mobile applications, the creation of video games, educational technology and so many others. There are also very obvious connections to industry and commerce, not to mention engineering, where system designers need to create usable interactive systems and interfaces for a range of different users.

Two of the key terms which are often spoken about when discussing interaction design are that of usability and user experience. Usability refers to the attributes or features of a product that enables the users to achieve an intended outcome. User experience, on the other hand, relates to the feelings or sense of accomplishment that might accompany an interaction with a device.

This interdisciplinary workshop aims to bring together technologists and educators from institutions throughout the UK who teach interaction design and related subject areas. Its overall intention is to share experiences and expose challenges, such as how to address complex issues such as the design of products for diverse users.

Topics can include, but are not limited to:

• Approaches and techniques used to teach interaction design
• Approaches and techniques used to teach the development of web technologies and any other interactive systems
• Development of mobile applications and tools
• Understanding usability and user experience
• Teaching of accessibility and interaction design
• New and novel pedagogic approaches for the teaching of usability and user experience
• Practitioner reports (education and industry)

Format

Those who are interested in sharing something about their teaching practice or their research are invited to submit short abstracts.  The abstracts will then be reviewed and those that are successful will be invited to submit papers that are 4-5 pages long which are to be connected to a presentation of 20 minutes.  It is envisaged that there will be a panel session at the end of the day to allow common themes to be identified and to expose some of the challenges that educators face regarding the teaching of interaction design and related subject.

If you are interested in attending, please submit a 300-500 word abstract to c.douce (at) open.ac.uk, using the subject heading 'HEA workshop'.

Key dates

Below is the list of the key dates to bear in mind:

13 May 2012 - Deadline for the submission of abstracts

18 May 2012 - Notification of acceptance

17 June 2012 - Deadline for final papers

Registration information for the event will be made available at least two weeks before the date of the workshop.

Last weekend I attended an event known as a Sense development session, hosted at the Open University in the South East offices in East Grinstead.  Sense is, of course, the graphical programming language that is used to teach the fundamentals of programming in a new module entitled TU100 My Digital Life. 

Whilst TU100 discusses a whole range of issues (such as privacy, mobility and ubiquity) and allows different skills to be developed, programming remains an important subject and one that some students find difficult. 

The main objective of the event was to enable associate lecturers to get together to share their experiences about using of the Sense software.  Before the main Sense session, another tool was demonstrated and discussed: Jing.

Jing

The Open University provides and supports a number of different digital tools, such as its Moodle based virtual learning environment, synchronous discussion tools  and image sharing software (such as the kind of software used on TU100, as well as other modules such as U101 Design Thinking and T189 Digital Photography).  Sometimes, however, it is possible to make use of freely available tools that are just 'out there' (on the cloud) to facilitate teaching and learning.

Jing is one of those tools.  At the start of the session, Graham Eaton demonstrated how Jing (Techsmith website) can be used to create simple and effective demonstrations to show students how to make use of different applications.  One of the really nice features of an application such as Jing is that it also allows you to make voice recordings: you can talk through how you use something.  When you are done, you can also share your digital recording to others by uploading the results to a shared website.

Graham went further than just saying that 'Jing is a tool that allows you to quickly make screen casts'.  Using MS Paint, a graphics tablet and Jing, Graham demonstrated that it is possible to create customised 'chalk board' animations which can be used to explain simple mathematical principles.

There are, of course, some drawbacks: cost.  The demo version (which is free to use) doesn't permit editing and has a limit of five minutes.  These five minutes, however, may make the difference between understanding a principle and not understanding a principle. 

An important (implicit) point was that we have different tools at our disposal, and it's up to us to find a blend of the different tools that we may feel comfortable using.   Educational practice sessions such as these may inspire us to consider investigating and deciding upon our own blend of tools (and allow us to think differently about new possibilities).

Introducing Sense

The Sense part of the day was facilitated by Diane Brewster and Michelle Dewey.  Diane kicked off the first activity to try and answer the question, 'what were the problems of teaching programming to novices?'  From three groups we arrived at a number of answer, which I'll do my best to summarise.

Firstly there were the broad skills, such as thinking algorithmically and being able to 'abstract' the essence of a problem so it can be translated into code.  This was connected to the challenge of looking (and understanding) the logic of problems.  The issue of syntax was also mentioned, along with the acquiring the knowledge (and understanding) of different programming structures and how they might be used. 

Knowing how (and where) to look things up was considered to be an important skill, as was techniques (and strategies) for testing and debugging.  A final general point that was discussed was that some students who had learnt how to program using one programming paradigm (Wikipedia) might find it difficult to learn a programming language that uses a different paradigm.

Diane took us through a presentation that aimed to answer the question 'why has Sense been developed and what is its pedigree?'  We were told about the Scratch language (MIT), a programming language called Alice (Alice website), and a microcontroller called the Arduino (Wikipedia).  Sense is, of course, a version of Scratch that the Open University has modified.  The differences being is that it has a small number of different programming constructs, and can also be interfaced with some Arduino based physical hardware.

Towards the end of this first session, we were then assigned into mixed groups and asked to consider how to write a small program using different coloured post-it notes.  (Some of us were programmers, others were not!)

Playing with Sense

Before we were allowed into a lab filled with computers, we were introduced to a number of other Sense concepts, such as the notion of 'broadcast', or sending messages from one component of a Sense program to another.  There was some discussion about the stage metaphor, and a presentation of a simple maze game.  In keeping with this metaphor, something new for me was the idea that a sprite (a graphical object on the screen) can have different costumes.

The final part of the day was dedicated to about an hour of 'tinkering'.  It is felt that Sense is one of those things that you can only get to grips with properly if you spend a bit of time 'messing around' with.  By messing around, this might mean creating new programs, or changing existing programs.

Not having had much time to tinker before (and being a former software developer), some of the constructs (and graphical palettes that held these constructs) soon became familiar to me.  What was apparent was that I had to do quite a bit of looking and searching, but by the end of the hour, I roughly knew where I needed to look (and what colour of programming construct to look for) to do the things that I wanted to do.

Final points

I took away a number of things points this session.  The first was a reminder about how the teaching and learning of programming is not just about programming itself.  It is all very well knowing about different programming constructs and understanding what they do but it is a whole other challenge to know how to decompose a problem into discrete steps that a computer can execute. 

Researchers who have studied the psychology of programming have explored the notion of a programmer's cognitive strategy.  As well as a programming strategy there is also the conception of a programmer's tactic, which can be considered in terms of something that a programmer might do to help them understand or get to grips with a problem, or understand what a computer is doing when faced with a buggy program.

Teaching programming isn't only about teaching the constructs, but also about exposing and sharing (or even 'bootstrapping', to take a computing analogy) these tactics.  I clearly remember a discussion about using something called the Plan Do Check Act, or PDCA cycle (Wikipedia) to help users of Sense understand what needs to be done.

Another important point (and one that I've mentioned before) is the need for both students and tutors alike to find the time to 'tinker', to explore what is possible within a programming language or environment.  Tinkering facilitates the development of strategies and tactics.

My own view is that programming isn't something that is just about making sets of instructions to get a machine to do stuff; it is also about facing up to the sometimes difficult challenge of problem solving.  Programming is an intrinsically creative activity, and this is something that is easily forgotten.  To be creative, we need to find the time to play and tinker.  This is something that is easily forgotten too.

The second UK disability history month has run (or is currently running, at the time of writing) between 22 November and 22 December.  During this month I managed to attend two events.  I'm going to summarise both of them within this short post with the hope that it could be of interest to someone.

There are a number of reasons why I wanted to play a small part within the week.  The first is that over the last couple of years I've been involved with a research project that has been exploring how technology might be able to be used to make a difference to the lives of people with disability.  Secondly, I tutor on an Open University module that explores some of the strategies and approaches about how to best use technology and to make some aspects of learning and teaching as inclusive as possible.  The third perspective is one that is personal, since I am afflicted by a condition that can be considered as a disability under current legislation.

The first event I attended was held at the TUC headquarters in London.  This event was subtitled 'why we are failing disabled people' and addressed the subject of disability hate crime.  The second event was sponsored by the UCU, the University and College Union that represents the interests of lecturers and teachers within further and higher education.  I couldn't 'attend' this second event in person due to work commitments, but the event was recorded by the Open University.  (You might be able to access this presentation, but I'm unsure whether you can do this from beyond the boundaries of the university systems).  This second event was more about contexualising disability history and celebrating their civil rights achievements.

SCAPEGOAT, TUC headquarters, London

The main speaker for this event was Katharine Quarmby, a journalist who has done extensive research into disability hate crime, publishing a recent book on the subject entitled 'Scapegoat: why we are failing disabled people'.  Katherine gave a powerful and shocking account of incidents of disability hate crime, a small number of which I remembered from media coverage.

During her research, she reported she studied over 100 cases.  Some of the crimes were perpetrated by people who were considered to be friends with a victim, so called 'mate crime'.  Katherine connected her presentation to both contemporary and historical issues.  The historical issue being the way that disability has been perceived, the contemporary relating to the perception towards enabling benefits, such as the disabled living allowance.

One point stood out for me, and this was that the reporting of this type of hate crime is on the increase, but another view is that perhaps those incidents that have been recorded may well be the tip of an iceberg.

The other main speaker of the day was Stephen Brookes, who is co-ordinator of the National disability hate crime network.  Stephen began with a definition which is 'disability hate crime is any criminal office which is perceived by the victim or any other person to be motivated by hostility or prejudice based on a persons disability or perceived disability'. 

One slide that Stephen used, entitled 'we are not...' stood out for me.  It contained the words, 'more vulnerable than everyone else, so don't label us', 'the problem', 'in the way. It's not our fault for being there!'.  Stephen went on to present a couple of specific cases, and then emphasised the point that tackling the issue is the responsibility of everyone and many different authorities and organisations.

Stephen also mentioned a report that he has been involved with, which is entitled Inquiry into disability related harassment, which can be found on the Equality and Human Rights Commission website.

Towards the end of the day there was an hour long plenary session where members of the audience could address each other and the panel.  One of the points that I clearly remember is a delegate who introduced the term, 'disability hate incident' (I think I have remembered this correctly).  These are incidents of subtle discrimination through maliciousness, ignorance or carelessness.  It was argued that the incidence of these events are significantly higher than that of crimes, which are, of course, considered to be under reported.

This point really got me thinking about my own experiences, how it relates to the social model of disability (wikipedia) and how to facilitate change either within an institution or wider society.  Other issues that were raised were equally important, such as the issue of employment and the role that prejudice may play.

I won't say this event was one that was enjoyable, since that wouldn't be an appropriate word for it.  I would say that it was challenging, and from this perspective, it was entirely successful.

Celebrate Disability History Month

The second event that I attended was recorded.  As mentioned earlier, I was able to access a recording of a presentation by Richard Reiser, co-ordinator of the Disability History Month, made at the Open University on Monday 28 November 2011.

Richard gave a very clear presentation about how disability has been perceived throughout different periods of history.  Richard spoke about the time of ancient Greece and Rome, moving onto medieval period, towards the Elizabethan period, through the Enlightenment to the present day, whilst speaking about the Nazism and the role of asylums and associated legislation.

Richard then moved to present a powerful exposition of the disability rights movement.  Richard also made explicit reference to the notion of language, with a view to how the choice of language relates to perceptions throughout society.

Exploring and choosing appropriate language is related to education, and suggested that more needs to be done, especially if eight out of ten children who are disabled report bullying.  Richard concluded by saying that we need disability history month to provide a focal point to help us to understand common ground and to facilitate the change the perceptions.

Reflections

There was a lot packed into these two presentations, and credit must go to the organisers.  The first thing that struck me was the extent of union involvement, and the number of union activists that participated.  The materials that were distributed at the first event, were impressive, i.e. a booklet about the use of language, a booklet entitled 'a trade union guide to the law and good practice', and another booklet entitled, 'representing and supporting members with mental health problems at work'.

A number of different themes (over these two presentations) jump out at me.  The first is the notion of 'struggle'.  I remember a number of different metaphors being used to describe both the experiences and situation, such as 'the tip of the iceberg', and that people are involved in a 'flight' for equality.  Such words, I believe, are very apt, and reflect a relationship between disablism and other civil rights movements.

On the subject of metaphor and words, an important theme is, of course, is language and its use, purely because of the implicit meanings that innocuous words and phrases may convey.  The third and final issue relates to that of responsibility, responsibility in the terms of being able to challenge inappropriate views and behaviour of others.

On Saturday 5 November I attended an Open University in London associate lecturer staff development event, held in the OU's offices in Camden.  I attended two sessions.  The first session was all about developments to the virtual learning environment, and the second event was all about how to best support students with dyslexia from a tutor's perspective.

This blog post is an edited set of notes from the second session.  I'm mainly blogging this event so I can share some of the themes with my H810 Accessible online learning: supporting disabled students group, but I also hope that these notes might be useful for other Open University associate lecturers who might accidentally stumble across them.

The supporting students with dyslexia session was facilitated by Lyn Beazley who works in the South East region, she also tutors with the university.  I also understand that Lyn is also a full member of an organisation called PATOSS which is an abbreviation for 'the professional association of teachers of students with specific learning difficulties'.

Introduction

Lyn began the session by setting the scene.  She introduced what dyslexia is by pointing us to a number of definitions.  The first one was by the British Dyslexia Association, which is, 'dyslexia is a specific learning difficulty which mainly affects the development of literacy and language related skills' and that it is 'present at birth and is lifelong in its effects'.  This definition gave way to a bit of debate, which is likely to echo some of the debates within dyslexia studies itself.

The second definition was from someone called McLoughlin (cited by Tonnessen) who define developmental dyslexia as 'a genetically inherited and neurological determined inefficiency in working memory ... It has particular impact on verbal and written communication as well as on organisation, planning and adaptation to change'.

One of Lyn's slides entitled, 'a social model of dyslexia' echoes one of the topics within H810, namely, the different models of disability.  The key points that Lyn made was that the social model takes account of human diversity where difference is emphasised as opposed to deficit.  Furthermore, materials that are dyslexia-friendly are likely to be user friend (which echoes a research finding which says that accessible technology is technology that is also easy to use).  A final point was people who have dyslexia also have particular strengths.

Some of these strengths were considered to be visual thinking, entrepreneurial skills, vision, creativity and lateral thinking.  People with dyslexia face difficulties whilst studying, these include writing assignments, that it takes longer to process information, reduced confidence and self-esteem, concentration, reading effectively, writing (and also the structure of documents) and spelling.

Assessment

An important question is: what happens if you think a student might be dyslexic?  One thing that you can do is discuss things with a regional advisor who can offer some advice about what to do next.  This may initiate the process of dyslexia being formally diagnosed (or assessed, as it is otherwise known).  Assessment is something that is done by a trained assessor who is able to determine whether someone is dyslexic or whether there may be other differences that might have to be taken into account.

Lyn told us that during the assessment process, assessors measure IQ and study strengths and weaknesses of personal performance.  There are, of course, financial costs associated to assessment.  If it is done privately, the cost can be between three and four hundred pounds.  If a student is receiving financial support then the university may be able to cover the cost of some (if not all) of the assessment.  

Being recognised as dyslexic enables students to access to a range of different resources.  One part of the assessment process is to determine the nature of the difference (or its characteristics?)  Another part is to determine what technologies or support might be best suited to an individual student.  After determining whether a student is dyslexic a student may then be eligible for something called the Disabled Students Allowance (or DSA).  The DSA enables students to receive finances to enable the purchase of a computer which may be then used with assistive technologies, such as text to speech software, for instance.

One thing that I didn't know was the extent that students can be offered one to one personal support with a specialist dyslexia tutor.  Another point worth mentioning is that students might be able to make use of the alternative formats the Open University provides.  One of the most popular alternative format is the use of comb binding.  Comb binding is where the materials are bound in a slightly different way, allowing coloured overlays to be more easily put on top of each of the pages.  Also, comb bound study materials can be more easily scanned using assistive technologies, enabling the textual materials to be manipulated.  Another alternative format might be the provision of the materials in audio form.

One thing is certain: the assessment process takes time.  It can take quite a while for the Disabled Students Allowance to come through.  If a student starts the assessment process at the same time as starting a module, there is the potential that a student might not be able to keep up with the pace of study.  Even if assistive technology arrives on time students still have to master the practicalities of working with the equipment and developing a repertoire of learning strategies to most effectively make use of the technology.

This wasn't something that was mentioned in the session, but the Services for Disabled Students team do have a solution to this impasse, which is the provision of loan items.  If a student is working through the assessment process, it might be possible to loan some assistive technology items as an interim measure.

Debates

Lyn's session gave way to a number of debates, some of which relate directly to H810.  One of them linked to the notion of reasonable adjustments.  I also remember a reference to the recent Equality Act (institutions, of course, have an obligation to respond to the needs of students).  I also have memories of a short conversation about that more and more Open University materials are being made available only on-line.  Whilst this might make accessibility difficult in one sense, technology may enable materials to be potentially accessible to a wider audience.

Another interesting debate centred around the sharing of study and writing skills.  It was concluded that tutors should feel free to give guidance about how to structure documents and compose paragraphs.  Sometimes, it was argued, that sharing things that are obvious can really help people to get a better grip of what they have to do.  Such advice isn't only useful to students who have dyslexia - it can be useful to all students too.  General guidance about how to present arguments, compose paragraphs and structure essays has been incredibly useful during my own Open University study.

Summary

I've been attending Associate Lecturer staff development on and off for what must be over six years.  I still remember attending my first one, where I was overwhelmed by seeing so many people who collectively help to present a myriad of different subjects.  I sense that they try to do two key things: to give useful information and encourage you to reflect on your own practice and think about how you engage with those who are taking the module you are helping to present.  This event was no exception. 

When I was leaving the VLE session I heard someone say, 'I always get something out of these events'.  That is certainly the case.  When it comes to the second event, I've taken a note of a number of resources that some members of the Open University might be able to access (depending upon their own access permissions).

The first is a set of web pages entitled: tutor resources for disabled students.  We were also guided to a really useful document which is called Associate lecturer's guidelines for marking the work of students with dyslexia.  I had not seen this document before; new things are added to the tutor guidance pages all the time. 

Another useful link is, of course, the Skills for Study website (which can be found through the Teaching and Learning link on Tutorhome, which you will have access to if you just happen to be an Associate Lecturer). 

All in all, the general Associate Lecturer development day was useful as well as being fun and friendly.  It emphasised, to me, that there are many different types of resources that both tutors and students can draw upon to help the journey of studying.

I think I must have been about 10 years of age when I first heard about the magical device that was the Logo turtle (and the mysterious notion of turtle geometry).  Fast forward two decades and about ten years ago I managed to find a copy of Papert's book Mindstorms in a second hand bookshop in Brighton (a part of me things that it must have been owned by someone who studied cognitive science at the nearby University of Sussex).  I had these two thoughts in mind whilst I was travelling to the University of Derby on the 28 November to attend the HEA BotShop.

This is a quick summary of my own views of the day along with my own take on some of the different themes that emerged.  In fact, there was quite a bit of commonality between this event and the HEA Open University event that was held a week earlier, but more of that later.  In case you're interested, Derby produced a press release for this event which highlights some of the areas of interest, which include neural networks, embedded systems and artificial intelligence.  We were told that this was pounced upon by the local press, proof that mention of robots has a constant and wide appeal.

First Sessions

The day was introduced by Clive Rosen and Richard Hill, subject head for Computing and Mathematics at the University of Derby, jointly welcomed everyone to the workshop.  The first presentation of the day was by Scott Turner from the University of Northampton who gave a presentation entitled Neurones and Robots.  Scott uses the Lego Mindstorms hardware to introduce some of the fundamental concepts of neural networks, such as how learning takes place by the changing of some of the numerical values that are used within a network.  Some of the applications of these robots include following lines, getting robots to follow each other and getting robots to avoid obstacles; seemingly simple actions which enable underlying principles to be both studied and demonstrated.

One of the questions to Scott was, 'what does using a robot add?'  The answer was simple: it can add enjoyment and engagement.  Although similar principles could be studied through the application of other tools, such as Excel spreadsheets, simple robots add a degree of immediacy and physicality that other approaches cannot.  These discussions made me consider whether there is a pedagogic dimension (in terms of educational tools) that has emulation on one end and physical devices on the other, and the extent to which we may wish to consider a balance between the two.

Scott's presentation was followed by Martin Colley from the University of Essex whose presentation was entitled Embedded Systems Teaching.  Having been a postgraduate student at Essex I found Martin's presentation especially interesting.  Although I didn't have direct exposure to the robotics labs during my time at Essex I remember that some of my peers made good use of the research and teaching facilities that the University provided.

Martin gave a quick history of robotics and embedded systems at Essex where he talked about the design and evolution of different devices which culminated in the development of a kit.  The design of the kits had changed along with the development of processors.  Early kits (and robots) made use of the Motorola 68k processor (famed for its use in the original Apple Mac) whereas the current generation of kits made use or ARM processors which are, of course, commonplace with mobile phones and other embedded devices.

One aspect of Martin's kits that I really liked was the range of different input and output devices.  You could write code to drive a 160x128 colour display, you could hook up a board that had light and ultrasound sensors, or you could even connect a memory card reader and a digital to analogue converter to enable students to write their own MP3 player.  Martin also touched upon how the hardware might be used to explore some of the challenges of programming, which includes the use of C and C++, how to work with a real-time clock, the use of interrupts and direct memory access buffers.   Debugging was also touched upon, which, in my opinion is a really important topic when 'students get down to the muddy later between the hardware and software'.  Plus, all these interesting peripherals are so much fun than simply having an embedded system to turn an LED on or off.

All in all, a really interesting presentation which gave way to a discussion about the broader challenge of teaching programming.  One comment that it isn't programming per se that is the main problem.  Instead, it is development the skills of algorithmic thinking, or knowing how to solve problems that represents the biggest challenge.

Using bots to teach programming

The third presentation of the day was by Mark Anderson and Collette Gavan from Edge Hill University who described how the broad idea of robotics has been used to teach fundamentals of programming and how some students have learnt to build their own devices.  Mark and Collette had a surprise in store.  Rather than having to do most of the talking themselves they brought along a number of students who shared with us their own experiences.  This was a great approach; personal accounts of experience and challenges are always useful to hear.

Mark and Collette's slot covered a broad range of technology in what was a short period of time.  They began with describing how they made use of Lego Mindstorms kits (using the NXT brick) with Java, used in the first year of study.  During the second year students move onto Arduino kits, where student negotiate the terms of their own projects.  I seem to remember hearing that students are at liberty to create their own input controllers, which might be used in collaboration with an embedded arcade game, for instance.  There was reference to a device called the Gameduino which allows the Arduino controller to be connected up to a video display.  Not only can I see this as being fun, I can also see this as being pretty challenging too!

Towards the end of the session there was a question and answer and answer session where another introductory to programming tool called Alice was mentioned.  There were two overriding themes that came from this session.  The first was that learning to program (whether it is an embedded device or a computer) isn't easy.   The second is that it's possible to make that learning fun whilst developing essential non-technical skills such as team working.

Micromouse

One of the really interesting things about robotics is that a broad array of disciplines can come into play.  One of the most important of these is engineering, particularly electronic and mechanical engineering.  I guess there's a 'hard side' and a 'soft side' to robotics.  By 'hard side' I mean using the concept of robots to teach about the processes inherent in their design, construction and operation.  The 'soft side', on the other hand, is where robots can be used to teach problem solving skills and introduce the fundamentals of what is meant by programming.  Tony Wilcox from Birmingham City University, who is certainly on the 'hard side' of this continuum, gave a fabulous presentation which certainly gave us software engineers (and I'm talking about myself here!) a lot to think about.

A micromouse is a small buggy (or autonomous robot) that can explore a controlled maze (in terms of its dimensions) and figure out how to get to its centre.  It was interesting to hear that there is such a thing as a micromouse competition (I had heard of robot football, but not mice competitions before!)  Different teams produce different mice, which then compete in a maze finding challenge.  Tony uses his 'mice' to expose a number of different subjects to students.

Thinking about the problem for a moment we begin to see a number of different problems that we need to address, such as, how do we control the wheels and detect how far the mouse has travelled?  What sensors might be used to allow the mouse to discover the junctions in a maze?  What approaches might we used to physically design elements of the mouse?  How might we devise a maze solving algorithm?  Tony mentioned a number of subject areas that can help to solve these problems: closed loop process control (for the control of the wheels) and mechanical engineering, 3D computer aided design, power electronics, and PIC programming (which is done using C).  I'm sure there are others!

It was interesting to hear Tony say something about programming libraries.  Students are introduced to libraries in the in the second year of his teaching.  Whilst libraries can help you to do cool stuff, you need to properly understand the fundamentals (such as bit shuffling and manipulation) to use them properly.  To best teach the fundamentals, you ideally need to do cool stuff!

One thing that I took away with me was that robot control and maze solving software can exist within 32K.  I was reminded that even though there is a lot of commonality between programming on embedded devices and programming applications for a PC they can be almost different disciplines.

Critters

The micromouse robots operate within a controlled physical environment.  Another way to make a controlled environment is to make one using software.  The advantages of using software is that you can control everything.  You can, of course, define your own laws of physics and control time in any ways that you want.  In a way, this makes things both easier and difficult for us software engineers: we've got the flexibility, but we've got to figure out the boundaries of the environment in which we work all the time.

Dave Voorhis from the University of Derby talked about his work on 'emergent critters'.  By critters, Dave means simple 'virtual animals' which hunt around in an environment for food, bumping into others, whilst trying to get to an exit.  There are some parallels with the earlier talks on robotics, since each critter has its own set of inputs and outputs.  Students can write their own critters which can interact with others.  There is parallel to core wars, a historic idea where programmers write programs which fight against each other.

Dave said that some students have written critters which 'hack' the environment, causing the critter world to exhibit unusual behaviour.  Just as with the real world, working against some of the existing laws (and I'm talking those that are socially constructed rather than the other immutable variety) runs the risk of causing unintended consequences!

Final presentations

There were two presentations in the final session of the day.  The first was by Steve Joiner from Coventry University about how robotics can be used to help teach mathematics to key stage 3 and 4.   Steve is a maths graduate and is a part of the Centre of Excellence in Mathematics and Statistics Support (SIGMA), in collaboration with Loughborough University.  Steve showed us a number of videos where students had built robots out of the Lego Mindstorms NXT kit.  Projects included navigation through sensors, launching projectiles (albeit small ones!) and predicting their behaviour, and applications of graph theory.  Steve also demonstrated a self-balancing Lego robot (basically, a bit like a mini-segway) that made use of ultrasonic sensors.  Steve made the good point that through the use and application of kits and projects, students can begin to see the reason behind why particular subjects within mathematics are useful.

The final presentation was an impromptu one by Jon Rosewell, from the C&S department at the Open University.  Jon has been heavily involved with a short module called T184 Robotics and the meaning of life which has just come to the end of its life.  Like so many of the earlier presentations, this module makes use of Lego Mindstorms to introduce the concept of programming to students.  Instead of using the native Lego software, the Open University developed its own programming environment (for the earlier Lego Mindstorms blocks) which is arguably easier to work with.  Students are not given their own robotics kit, but may use their own if they have one available.  If they don't have access to a kit, students can make use of a robotics simulator, which is a part of the same software package.

Towards the end of the day there was some talk about a new Open University undergraduate module called TU100 My Digital Life.  This module makes use of a 'home experiment kit' which contains an Arduino processor, which was mentioned by Mark Anderson earlier in the day.  Whilst the TU100 senseboard, as it is called, cannot directly become a robot, it does contains some of the necessary features that enable students to understand some of the important ideas underpinning robotics, such as different types of input sensors, and output peripherals such as motors.

Plenary

At the end of the day there was sufficient time to have an open discussion about some of the themes that had emerged.  Clive Rosen kicked off the discussions by saying that robots can help teaching become engaging.  I completely agree!  One of the difficulties of teaching subjects such as mathematics and computing is that it can often take a lot of work to get satisfying and tangible results.  Using robots, in their various forms, allow learners to more readily become engaged with the subject that they are exploring.  In my own eyes there are two key things that need to be addressed in parallel: what subjects the application of robots can help to explore, and secondly, how to best make use of them to deliver the most effective pedagogic experience.

These ruminations connect to a plenary discussion which related to the teaching of computing and ICT at school.  There was a consensus that computing and ICT education needs to go so much further than simply teaching how students to make use of Microsoft Office, for instance.   We were all directed to a project called Computing at School and a relatively new education (and hardware) project called RaspberryPi was mentioned.  I'm personally looking forwards to how this project develops (and hopefully being able to mess around with one of these devices!)

There was some debate about individual institutions 'doing their own thing', in terms of building their own teaching hardware, raising the question of whether it might be possible to collaborate further (and the extent to which the higher education hardware might potentially be useful in the school environment).  It was concluded that it isn't just a matter of technology it may be more of a matter of education policy.

In the same vein, it was hypothesised that perhaps the embedded processors within students' mobile telephones might (potentially) be used to explore robotics, perhaps by plugging in a phone to 'extension kit'.  Another point was that little was discussed about fixed or industrial robots, which is almost a discipline in its own right, having its own tools, languages and technologies.  This is a further example of how robotics can connect to other subjects such as manufacturing.

Thinking back to the event, there are a number of other themes that come to mind.  Some of these include the role of simulation (and how this relates to physical hardware), the extent to which we either buy or build our hardware (which might depend on our pedagogic objectives), and the types of projects that we choose.

Through the use of robots students may more directly appreciate how software can change the world.  Robotics is a subject that is thoroughly interdisciplinary.  I've heard artificial intelligence (AI) described as applied philosophy.  Not only can robotics be used to help to study AI, it also has the potential to expose learners to a range of different disciplines, such as mathematics, electronics, physics, engineering and the fundamentals of computing.

Learning how to program a robot is not just about programming.  Instead, it is more about developing general problem solving skills, developing creativity and becoming more aware at how to conduct effective research.

 I recently had the pleasure of attending the PPIG 2011 workshop between 6 and 8 September.  As I might have mentioned in an earlier blog, PPIG is an abbreviation for the Psychology of Programming Interest Group.  There used to be an American equivalent which was called ESP (Empirical Studies of Programmers), but this community seem to have disappeared.  PPIG, on the other hand, is going strong.

This year it was held in the University of York computer science department.  The department had moved since I was last there, forcing me to circumnavigate the campus and arrive at a time when almost all the tea and sandwiches had disappeared.  Thomas Green gave an opening address, and then it was swiftly on to the first presentation.

Mathematics and Visual Impairments

Alistair Edwards gave a talk entitled 'new approaches for mathematics in blind students'.  Mathematics, of course, relies on visual notations.  These notations, it was argued, are an integral part of working with maths.

Alistair holds that view (or, should I say that I understand that he holds the view) that there is more to it than just using an appropriate notation, or having that notation converted into another form.  We externalise parts of our working memory by using pen and paper.  Also, the idea of cancelling (or balancing) an equation by crossing of similar teams from both sides can be viewed as a visual manipulation.

Alistair mentioned a couple of projects, one of which was called Lambda, an abbreviation for Linear Access to Mathematics for Braille Device and Audio-synthesis.  Here, the challenges began to be clear: I didn't know this but different countries have different braille notation for mathematics.  There is, of course, the issue that using an interface to a notation immediately places cognitive barriers in the way that has the potential to make things more difficult to understand.  Users, it was argued, need more direct forms of interaction when working with mathematics.

All in all, a very thought provoking introduction, and it made me wonder how Green's cognitive dimensions of notations framework might be used to analyse interactions to notational systems (such as mathematics or programming languages) by users who may have different modality preferences (i.e. auditory over visual).

New Tech

The first main session of the workshop was called New Tech.  I'll do a very quick run through of the papers from each session.  Jon Rimmer presented the shyness project, and introduced the beguiling ambient computing device called the 'subtle stone', whereby class participants can communicate their emotional state to the lecturer by a click of a juggling ball.  Jon deftly directed us to a series of interesting papers about shyness.

The following paper was closely connected.  It was entitled 'self-reporting emotional experiences in a computing lab', by Judith Good (et al).  Us programmers go through a whole spectrum of different emotions during a programming session, from delight, through to wishing to jump on our laptop (although I don't recommend this).  This is an interesting direction: emotion connects to motivation, and traditionally the PPIG community have more focussed upon the cognitive.

Chris Roast, from Sheffield Hallam University, took us on a tour of a tool that helped to create different internationalised film posters; software localisation through abstraction.

One of the papers that I most enjoyed was by Chris Martin from the University of Dundee, who took dancing robots on a road trip to a number of different schools to further explore whether a robot dance workshop can inspire interest in a technical subject such as computer programming.  Or, does using robots 'sugar coat' a difficult subject, or is there more to it than this?  By robots, imagine small buggies.

In fact, Chris's robots use the same Arduino microcontroller that is central to the TU100 Senseboard. By dance, this is an activity that has a low threshold to success, is created, transcends culture, and where performance can be valued over competition (I made notes during this bit of Chris's talk).

The two other papers in this section described how to make music with a dry marker pen, a whiteboard and a mobile phone by defining your own musical notation (which was pretty cool), and considered the challenges that users of mobile spreadsheets face.

Human and algorithmic complexity

The next presentation was a 'work in progress' paper by yours truly.  I talked about a project (that has been making very slow progress, due to a myriad of different reasons) to explore whether it is possible to link measurements of program complexity to physiological measurements that are known to indicate human cognitive load. 

The workshop participants gave me a whole number of things to think about, including the names of a number of researchers, as well as a clear message of: 'stop procrastinating, just get on with it'.  I'm certainly going to take that last piece of advice.

The following presentation was about the challenge of working with test data.  A subject that can easily cause terror to many a software developer.

Language Formalities

Wednesday yielded a change of plan.  Thomas Green ran a session entitled, 'how to design a notation'.  A programming language is, of course, a form of notation.  Thomas posed interesting questions, like, 'how might we invent a different type of musical notation?', which led onto other questions such as its level of abstraction (what each element of a notation can represent), what you might wish to do with a notation, it's overall purpose, and how you might off load to external representations.

A theme underpinning all this debate was one that is familiar to many human-computer interaction and interaction design researchers: the idea of trading one thing off against another.

Giora Alexandron then presented his paper entitled 'programming with the user in mind' which led us towards considering something called live sequence charts, which is an extension of UML sequence diagrams.  We were introduced to the Play Engine and the PlayGo IDE.

This was followed by a presentation by Ahmad Taherkhani who spoke about 'automatic algorithm recognition based on programming schemas'.  I really liked this paper, since it was a new angle on some very early psychology of programming themes.  I particularly like how Ahmad was attempting to use existing theories to engineer a solution that may not only have practical use (in terms of providing tools to help educators to understand the programming code that students write), but also the act of programming a solution has the potential to allow us to learn more about the theories that are being applied.

The final paper in this session was a work in progress paper by Khuong A Nguyen who used a human-computer interaction technique called cognitive walkthough to learn more about the NXT-G visual programming language that can be used with the Lego Mindstorms hardware.

HCI for the future

Following a tour of a HCI and accessibility lab (which resembles a small apartment), a short panel discussion took place, with Nicholas Merriam and Luke Church taking centre stage.  Nicholas's perspective was especially welcome, since he spoke about the challenge of working with low level embedded software and the role that timing visualisation tools may play when attempting to solve programming problems that seem particularly intractable.  This linked back well to the earlier discussions of notation.

Learners and language design

This session contained two papers.  The first was a paper by Ahmed Alardawi, from Sheffield Hallam, aimed to explore the effect that object-oriented programming language class structure has on the comprehension of computer programs.  What was great about this research was that it clearly made use of existing work, and partially replicated earlier studies, thus adding to evidence.  Babak Khazaei, also from Sheffield Hallam, presented an empirical study on the influence of OCL, an abbreviation for Object Constraint Language (wikipedia). 

Motivation and affect

This part of the workshop contained a single presentation, by Rein Sach, from the Department of Computing at the Open University. 

Rein's paper was entitled, 'what makes software engineers go that extra mile?'  Rein asked software engineers what it was about their work that they enjoyed.  This gave way to an interesting discussion about the perception of the nature of programming work.  Even though developers might have to battle with misbehaving operating systems and maintain servers from time to time, perhaps these activities need to be considered as work rather than nuisances that get in the way of the real task, which is doing the intrinsically rewarding and creative work of creating code.

Invited paper

Thursday kicked off with a presentation by Gerrit van der Veer, from the Open University in the Netherlands and the Free University, Amsterdam.  Gerrit's presentation was about different aspects of design, how technology might be used to gather debate surrounding the artefacts that are created during the design process through a system called CAM, meaning Co-operative Artefact Memory.  A barcode sticker could be attached to different artefacts, such as a sketch or a physical prototype.  Design groups could then use these stickers, with mobile phones, to access a shared Twitter stream that relates to each object, allowing views and ideas to be shared.

Two thoughts came to mind during Gerrit's presentation.  Firstly, I wondered the extent of similarities between design practice (in different disciplines) and what occurs within software development practices that use agile methods, such as eXtreme Programming.  Secondly, CAM reminded me of a tool called OpenDesignStudio used for an Open University design course called U101, Design Thinking.

Another part of Gerrit's presentation was all about service design (i.e. design which yields a product that is not a tangible item).  Gerrit pointed us to a number of resources, such as the Service Design Tools site, and mentioned the importance of culture, by referring to the work of Hofstede (which is studied in the M364 Interaction Design Open University course). 

Cognitive considerations

The final session of the workshop contained two presentations that related to the cognitive dimensions of notations framework, papers by Anna Bobkowska, Maria Kutar and John Muirhead.  Anna introduced a language for the processing of multimedia streams through the use of a visual language.  Maria and John's presentation explored how a cognitive dimensions questionnaire might be used by non-experts.

Miguel Monteiro went on to speak about the cognitive foundations of modularity.  Miguel referred to a programming paradigm called Aspect-oriented programming (wikipedia), a subject that I have heard of many times, but one that I have not explored in a great deal of depth.  Learning more about AOP is certainly something to do at some point.

Qualitative and Quantitative

The final presentation of the workshop was by Gordon Fletcher from the University of Salford.  Gordon's presentation was entitled 'methods and practicalities of qualitative research', but it was so much more than this.  Gordon spoke about data collection in different communities, and mentioned the concept of biographical research (which made me wonder if anyone has thought about applying this technique, perhaps with regards to exploring motivation or software related careers.

I came away with a number of messages, namely, it can be relatively easy to gather qualitative data, but figuring out what to do with it is a whole other issue.  Also, both quantitative and qualitative research can be both systematic and rigorous; these different approaches to research have a lot in common.  An interesting quote was, 'the method has to fit the researcher even more than it has to fit the research'.

Gordon's presentation gave way to a memorable debate on the use of terms.  Undoubtedly the use of language will remain a perpetual challenge when carrying out multidisciplinary research.

Themes

A number of diverse themes were evident within the PPIG '11 workshop, representing its broad membership.  There was a strong theme of computing education and pedagogy.  Programming and educational motivation was also apparent, mixed in with the use and design of visual programming languages.  This connected to the important theme of cognitive dimensions, notational systems and notational design. 

Two interesting inclusions were links to the broader subject of design, and accessibility.  Human-computer interaction and interaction design remains important theme too.  A final theme is (perhaps that isn’t as strong as in previous years) is the application of ethnographic methods to further understand the activity of programming.  It was great to hear from a broad spread of presenters who are exploring many different research areas.

I always enjoy visiting Manchester.  Having spent many years there (both as an undergraduate and a postgraduate) visiting Manchester almost feels as if I'm coming home.  Plus, travelling directly to the computer science building (as a computer scientist) feels as if I'm returning to a 'spiritual home'!

The reason for my most recent visit was to attend the 9^th TLAD workshop, which was all about the teaching, learning and assessment of databases.  Below is a summary of the event.  I hope it is useful for someone.

Paper Session 1 - Data Mining

The first paper that was presented during the day was entitled 'Teaching Oracle Data Miner using Virtual Machines', by Qicheng Yu and Preeti Patel, both from London Metropolitan University, and expertly presented by Preeti.

Preeti made the point that employers are demanding up to date practical and technical skills.  The issue of employability was, of course, an issue that was discussed within an earlier HEA event entitled Enhancing the Employability of Computing Students.  To address the important issue of technical skills, educators are necessarily faced with the challenge of how to enable learners to make use of industrial tools and products.  One of the solutions (in the area of database and data mining education) was to make use of virtual machine technology, such as the Microsoft Virtual PC, Oracle Virtualbox and a product called VMWare Player. 

Some of the challenges that have to be addressed are technical i.e. how to share drives through a host computer, and financial or legal challenges, such as how to make sure that any solutions are correctly licenced.  Preeti pointed us to a product known as WEKA, which I had never heard of, but it seemed that many of the audience had!

The second paper of the morning was by Hongbo Du from the University of Buckingham.  His paper entitled, 'Data mining project: a critical element in teaching learning and assessment of a data mining module' won the 'best paper' prize of the workshop.  Hongbo mentioned what seemed to be an important paper in the area, namely, something called the CRISP-DM standard (wikipedia), which enable students to gain an understanding of the data mining process.  Hongbo also presented a general framework for assessment (within his paper) which drew upon this methodology before presenting three different case studies.

The key points that I took away from his presentation was: group work is important (but very often students don't want to do this since they might want to own their own scores completely), and that the domain of application is very important too, and represents a substantial area of complexity that students need to necessarily grapple with.

The final presentation of the first session, entitled, 'Making data warehousing accessible' was by Tony Valsamidis from the University of Greenwich.  Tony began by presenting some of the problems, such as the availability of large data sets (an issue that I shall return to later), unwieldy query languages and unfamiliar domain and data models. 

Tony spoke of a number of different technologies and techniques, some I had used in anger (such as Visual Basic for Applications), others I had heard of but had forgotten the meaning of (such as OLAP).  An important issue that was raised was that of data sanitization: when you move data between different systems, things might not be directly compatible, so database practitioners might have to design some magic data transformations.

Paper Session 2 - Database and the Cloud

The fourth presentation was rather different.  Mark Dorling from Langley Grammar School described his teaching practice and association with a project called Digital School House. 

Mark trained as a primary school teacher but he is now working within the secondary sector.  He described how he helps students to understand the key concepts of data, information and logical operators, sometimes applying kinaesthetic learning techniques (i.e. movement).  Mark also described the use of something called independent learning videos (allowing students to remember how to use elements of applications).  This reminded me of the industrial term of 'on-demand e-learning', where learners can call up screen casts or bite sized presentations about how to carry out or complete different tasks.

Mark also showed how secondary school pupils could make use of cloud application, such as Google Spreadsheet, to enable an entire class to enter data (and for the data to magically appear on an interactive whiteboard).  Mark's presentation (and paper) got me thinking about how I might potentially adopt some of the pedagogic techniques that he described into my own teaching practices.

Mark's description of how he makes use of Google Spreadsheet lead us directly to Clare Stanier's presentation which was entitled, 'Teaching Database for the Cloud'.  One of the things that I really liked about Clare's presentation was that she addressed a question I was already mulling over, namely, 'how is it possible to define cloud databases?'  She gave an answer that related to some NIST definitions (pdf). 

A cloud database can be considered in terms of Infrastructure as a Service, Platform as a Service and Software as a Service (such as Google Spreadsheet).  Depending on their task, developers will interface with different products (and different levels of abstraction).  Clare pointed us to interesting sounding products such as Microsoft Azure and Oracle on Demand, neither of which I had ever heard of before. 

This is obviously a rapidly changing field!  If you require any further references to either cloud related papers (or products), Clare might be able to share a useful URL.

Paper Session 3 - Embedding Technology

Jackie Campbellfrom the University of Leeds began the final session by presenting a paper entitled, 'Inquiry based learning database oriented applications for computing and computing forensic students'.  Two activities or tools were described.  The first was an SQL Quiz application, where students were challenged to compose correct SQL statements.  The second was more of a software maintenance task, where students were asked to investigate and carry out a number of fixes to an existing application developed using something called Oracle Apex.

I personally consider maintenance activities to be really valuable for a number of reasons.  Firstly, maintenance is a substantial on-going challenge.  Database designs are likely to be particularly affected if software applications or businesses merge.  Businesses, of course, continually change and evolve (as must the software systems that they support).  Understanding how (and where) to change or correct database queries may require students to navigate their way through unfamiliar systems.  This, in itself, is likely to be an intellectually challenging task.

The presentation by Craig McCreath (and supported by his supervisor Petra Leimich) reminded me of an earlier presentation about the JISC WILD project that was held at the HEA mobile event a number of weeks ago.  The underlying ideas were very similar: using mobile devices to elicit responses from students to (attempt) to assess their understanding of materials.  Craig did a fabulous job at presenting, and I had a sense that the application he had developed for his final year project was easy to use.

The final presentation was, 'Using Video to Provide Richer Feedback to Database Assessment' by Howard Gould, Leeds Metropolitan University. Howard addresses the important questions of: 'what kind of feedback would most effectively benefit our students?, how do we make the best use of our time to provide this feedback?, and, how might we practically provide video feedback?'

Howard's paper was, in essence, a practice paper; I think this type of paper can be really valuable.  One of the challenges that lecturers face is to offer effective and useful feedback on entity relationship diagrams, showing students alternative database designs.  I sense that providing feedback on any kind of non-written notation is something that is intrinsically very difficult (and can include notational systems such as mathematics and music).  Howard solves the problem by recording screen captures after having spent some time initially looking at a student submission.  Practical challenges include file sizes (the videos themselves can be very big), and on-screen flicker (since an inexpensive digital camera is used as opposed to an expensive licence for Camtasia).

Discussion

After all the paper sessions a discussion was initiated by Alistair Monger (Southampton Solent), David Nelson (University of Sunderland) and Charles Boisuert (Sheffield Hallam).

Alistair pointed us towards a number of useful assessment resources, beginning by mentioning that the QAA code of practice requires formative assessment.  He also mentioned REAP, an abbreviation for Reenginerring Assessment Practices in Higher Education, followed by TESTA, Transforming the Experience of Students through Assessment (JISC).  Alistair mentioned the importance of having an audit trail of feedback, and mentioned a system called GradeMark.

David raised the perennial issue of collusion and plagiarism and made the point that assessment should always be at such a level that it is difficult for students to quickly 'find answers'.  One solution might be to have time constrained assessments, perhaps in a computer lab (something that I remember from my days as a computing undergraduate), and the production of a portfolio which shows evidence of understanding.

Charles pointed us towards the idea of Nifty assessments.  Charles mentioned the point that markers mark in different ways and that there will be variability.  Another point was how to help those students who always seem to struggle with the subject.

The ensuing discussion took us into issues such as the importance of good feedback (and explaining the importance of why certain subjects are assessed), differences between both individual students and cohorts, and a reference to something called the Database Commons Initiative.

Summary

Although I'm not directly involved with the teaching of databases and database technologies I found this to be a very interesting event for a number of different reasons.  The first is the difference in the variety of database related topics that are now taught; things are rather different from my undergraduate days when database education began (and ended) with SQL syntax and learning about different types of joins.  The domain is now a lot richer than it ever was. 

There are now different levels of 'cloud' databases, small embedded databases, huge data warehouses, object-oriented databases and XML databases.  Other themes that might have been perhaps discussed are the connections between database teaching and software design, alerting students to issues such as making database abstraction layers and stored procedures (but perhaps these issues have been explored in earlier workshops).

The second reason also relates to this issue of richness.  Software engineers and system designers are now faced with a myriad of different choices in terms of architectures (how to set up large systems) as well as products, both commercial and open source.  Understanding what different products do and how they might support business objectives are issues that software professionals always need to bear in mind.  These 'industrially connected' points relate to the issue of certification.  The teaching and learning of databases is, perhaps, now an endeavour that is shared between academia and industry.  Perhaps the role of higher education teaching and learning in this area is to provide a useful context to help students to get to grips the more practical dimension of professional certifications.

Another thought that came to mind was I felt that there was a degree of useful cross over between other HEA events, particularly the joint employability and computing forensics event that I attended.  During the forensics part of this day I remember a fair amount of discussion about the sharing of 'data sets' which could be used to enable students to hone their computing forensic skills.  It struck me that database technology educators are faced with a similar challenge.

A final comment is I personally consider that the subject of databases is a pretty fundamental area of computing education.  I have to mention, of course, the Open University's own database course, M359 Relational databases: theory and practice.

Database education is an area is necessarily rich: students will be exposed to different languages, problem domains and wider system architectures and designs as soon as they set to work on 'real world' applications.  Databases represent a domain of software technology that ultimately helps 'to get jobs done'.  Where would we be without them?