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Dave Edwards in Edinburgh

S207 Quantum mechanics with Elluminate

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This is another new tutorial topic for me! The tutorial falls in the early part of S207's Book 7. Therefore I only really need to consider  material on reasons physicists developed quantum theory, wave-particle duality, Heisenberg's uncertainty principle and the one-dimensional time-independent Schrodinger equation for square wells and barriers.

I want to emphasise physical thinking as a means of getting into the maths. The material on the Schrodinger equation is quite mathematical and complex.

I decide to focus on the role of standing waves. These could be waves in a glass of wine (or cup of coffee), or in a skipping rope. I want to show how the confinement of the waves leads to discrete wavelength values, which then give rise to discrete energy values - quantization.

I sketched some one-dimensional standing waves on a rope, and wrote down expression for the possible wavelengths in terms of the length of the rope. Then I put these values into sine and cosine wave functions. These are the permitted waves that can 'stand' on the string.

To prepare the actual tutorial material I started to build a PowerPoint presentation.  Individual slides were prepared by making use of MS Paint (sketching diagram and graph axes), constructing a series of sine and cosine graphs with Excel, and preparing images  of equations in the MS Word equation editor. Student interaction was designed in with some simple quiz questions, by asking students to sketch curves onto my graph axes, and by asking students to do their own algebra.

A copy of the PowerPoint is available here.

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Dave Edwards in Edinburgh

SXP288 Elluminate for NMR: Intepreting spectra

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This second NMR Elluminate tutorial is the core of the NMR tutorial work - it covers interpretation or prediction of the NMR spectra from protons within simple organic molecules.

We were provided with a short PowerPoint presentation of eight slides showing the structural formulae of three organic molecules and the corresponding NMR spectra.  Colour-coded version matched up the lines within the spectra to the chemical groups responsible for them.

As I am not familiar with this subject (apart from the short period spent teaching this module last year) I worked through all of the relevant module material.  I then found that working out the spectral features was relatively straightforward.  There was one feature whose details did not match up clearly to the rules of the simple models we used. I asked for clarification on this from the topic specialists on our dedicated support forum, but did not receive a response before the tutorial. 

The material covered in the PowerPoint was not enough for a tutorial as students would probably not to be sufficiently familiar with the topic to work through these examples within a tutorial. I referred back to the presentation I used last year. I had provided a summary of the rules at the start of this presentation. 

I made a few minor changes to improve the clarity of these slides, including stretching the content and darkening the colours. Then I rehearsed the presentation via Elluminate on my Tablet PC, using the pen to annotate the screens, including writing out the working.

My intention was to get the students to apply the rules for the examples. Therefore I extracted key screens containing the rules and placed them on our group forum for students to print out before the session.

In practise the session ran well. The students, although again reluctant to speak, did contribute and successfully worked through the three examples. They seemed to appreciate the exercise (though I have not had any specific feedback). I provided a pdf version of the annotated whiteboard screens on the forum afterwards.
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Dave Edwards in Edinburgh

Review of Elluminate for S282 resit

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Edited by Dave Edwards, Monday 8 April 2013 at 10:17

After a bit of reflection I decided to add a few quiz questions to the session.

This did actually help in the session, because the students were very reluctant to speak (though occasionally they did speak). I was very pleased I made this change, because it forced some interactivity.

The session ran to 1 hour 20 minutes. I liked the fact that I managed to review some of the astronomy whilst discussing revision and study skills.

I spotted a couple of minor issues with slides and corrected them afterwards (a version of the file is here . The spray diagram example needs to be replaced next time with either an electronic version or (probably better) a hand drawn diagram with much thicker lines.

There was some technical difficulty for me at the start of the session. I had planned to use my Tablet PC to write on the whiteboard during the session. I also wanted the benefit of my large monitor. However this took me down a path of screen resolution and orientation problems, culminating in the microphone button (conveniently located at the bottom of the Elluminate window) being off the bottom of my screen. I had to settle for just using the monitor.

[4 April 2013]

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Dave Edwards in Edinburgh

Elluminate for Astronomy exam resit tutorial

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Edited by Dave Edwards, Monday 8 April 2013 at 10:16

I have been asked to provide two one-hour long Elluminate sessions for students resitting their S282 'Astronomy' exam.

I will follow my original proposal for the task. This was a skill based first session:

Revision skills
Exam technique
Maths skills
And a summary of key physical principles.

My intention was to build a discussion oriented session. As students may not have started revision I do not think quizzes are appropriate. However, some of the examples will lend themselves to asking students to spend a few minutes looking for information or solving problems.

I drafted an outline plan on a sheet of paper. then I started to work on PowerPoint, reusing an introductory screen on using Elluminate.

I used a pdf copy of a module book to extract one page and annotate that with my Tablet PC to illustrate the idea of using diagrams and annotating the module book. this was difficult to do - I had trouble extracting a copy of the page from the huge book. I found a copy of the appropriate chapter only, and managed to delete the other pages.

I also wanted to illustrate the use of spray diagrams. I used a chapter summary section to prepare a hand written spray diagram. I then scanned this in, rotated it and inserted it into the PowerPoint. The quality was poor. I tried to improve the legibility of the diagram but did not manage to find an appropriate tool. It would be too time-consuming to prepare the diagram electronically, so I decided to accept the slide as it stood.

I used an extract from an old exam question to create an exercise on writing. Simlarly for a maths skills example I used an old TMA question part, and the excellent example answer I had supplied to students.

To help me discuss the the revision period I took a hand-drawn diagram from an S282 handout I have often provided to students.

Then I prepared a list of key ideas (extending over four slides)by skimming through the book.

While working through the preparation I kept in mind the need to have dark colours and large text and images so maximise legibility in Elluminate.

I also adapted the first screen to place on the Elluminate site, in the hope that I can encourage students to use their mircophone.


All this work took about six hours.

[1 April 2013]
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Dave Edwards in Edinburgh

My first Elluminate tutorial for S104

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For the 2013B presentation of S104 we are sharing tutorial activities, and for the first time we are using Elluminate. I have the task of providing an Elluminate session for the whole of Scotland on Book 3 -energy and light.

I did produce an 'energy dominos' Elluminate activity a few years ago for S104 use, but I have not tested it on real students and it is only suitable for use with a few students. So this may not be the time for it.

However - the students will only be two days in to their study of this book so I need to keep everything very basic and I need to explain everything that we do.

They should have read the law of conservation of energy. Kinetic energy, the joule and rearranging equations come early, in chapter 3.

General plan:
Slides about definition of energy, forms of energy, conservation of energy.
Discuss energy transfer in collision (game of pool), contrast immediate an long-term outcomes of the collision and the implications for the energy transfer (importance of specifying the context).
Formula for KE, apply to car.
Transfers between Grav PE and KE (ball thrown into air). Grav PE climbing stairs.  Graph of energies for ball.
Movie car stunt - speed calculation. Algebra. Check units and sense.

Algebra - do in Windows Journal AND back up with slides. Quizzes.
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Dave Edwards in Edinburgh

SXP288 Elluminate for NMR: Chemical structures

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To support the students' work on nuclear magnetic resonance in SXP288 (Practical science: physics and astronomy) we need to run two Elluminate sessions fairly close together.  I decided to offer these fairly early as the information I had from students indicated they were making rapid progress through the NMR topic.  I used two Doodle polls to let students indicate their preferred days of the week.

The first session covers valency and covalent bonds, functional groups, structural formulae, naming conventions and isomers for some simple organic molecules.  The module team provide a short PowerPoint presentation based around fifteen slides including a few test questions at the end requiring students to identify structures and to draw structural formulae.

I reviewed the PowerPoint I used last year and made a few minor changes. This file ran to twenty slides. I had already included additional slides reviewing the naming conventions and I also split the test questions over more slides to improve clarity. I also stretched some of the images to improve the readability in Elluminate.

I prepared a pdf file from the PowerPoint slides, and used PDF Annotator (along with my Tablet PC) to hand write my speaking notes onto the slides. I also included all the annotations I planned to provide with Elluminate via the Tablet PC.

After printing this out I ran through the presentation myself.  I still felt that students would find applying the naming rules difficult during the test questions unless they had easy access to the appropriate material. Therefore I extracted a few key slides into a separate PowerPoint, and exported this to a pdf file. This was then posted on the tutor group forum along with a suggestion for students to print it out ready for the session.

I posted this file and discussed it within Elluminate with my colleague Sye Murray.

Al this activity took nearly a day.
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Dave Edwards in Edinburgh

S282 'Astronomy' Elluminate session in practice

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Edited by Dave Edwards, Wednesday 10 April 2013 at 22:03
In spite of the advance request to these S282 astronomy students for them to have the DVD images available for the session about four of the twenty participants did not.

At the start of the images activity we asked students to open up the images on their machines, and to provide a tick on Elluminate when they had done that. It took a few minutes for this to be completed, and it was not entirely clear if some students had achieved this or not. Some of these students seemed to be finding using Elluminate difficult.

To cater for these students we put them together in one breakout room and Anne provided the images via Elluminate's application sharing feature. However this left Anne trapped n the breakout room, and the amount of discussion between these students was low.

I went though the other break out rooms to check that they had understood the task and that they were engaging with it and with each other. This seemed to be the case.

We had allowed 10 minutes for the individual breakout room discussions, but for me to get around the four rooms took all of this time.

We also had planned two breakout room activities in this part of the tutorial - however it was clear that we were running rather behind schedule. We opted to skip the second activity and move straight to the TMA discussion.  A break out activity had been planned here as well. This was also skipped in favour of asking students to type responses directly onto the appropriate whiteboard. This worked well.

At the end of the session we posted copies of the PowerPoint material to our Tutor Group Forums.
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Dave Edwards in Edinburgh

Introduction

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I have been thinking about (or perhaps I mean "struggling with"!) tutorial planning for quite some time. I have finally decided to create a record of what I have done and why - and how effective the work was.

I do already keep a log of tutorial plans and notes on their effectiveness, but I think that more detail might be useful. This is particularly prompted by the increasing number of Elluminate tutorials I am running.

Currently I tutor on a range of Level 1 and 2 science modules.

Working via Elluminate is very different from face-to-face work so hopefully I can generate some useful ideas or information here. I also will share some of the material I generate, so that others can use it.

This particular blog was started on 6 March 2013, here on blogger but I now want to see how suitable the OU tools are for the task. I am copying those old postings here.

Dave

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