After a late night getting into Bangkok and a couple hours of sleep (though I suppose few good stories start "I had a good long night of sleep when I first arrived in Thailand) I made it to the start of the EARCOS 2012 Teachers' conference yesterday morning. I'll have more to say about the details of the conference later on, but I wanted to post briefly about the presentation I gave on Geogebra in the afternoon.
The room was packed with teachers and coaches armed with laptops and interested in seeing how the program works. My focus was on giving feedback, with Geogebra as the medium for that feedback. I did not intend it to be a beginner's tutorial on Geogebra for a few reasons:
- There is so much fantastic material out there already that shows how to use the software.
- I wanted to specifically focus on the philosophy of using software to provide instant feedback to students on mathematical tasks.
- Nick Jankiw from Geometers Sketchpad was doing a series of workshops on GSP and I didn't want to engage in the Geometers Sketchpad vs. Geogebra debate. I see them both as excellent pieces of software. I choose to use Geogebra for a number of reasons that I mentioned in my presentation. The truth is that Geometers Sketchpad defined the field of dynamic geometry, and I do think it's important to acknowledge that fact.
My slides and accompanying notes can be found here: EARCOS presentation - notes pages
The video is below - unfortunately there wasn't a great place to put the camera to be able to get me and the slides, and the contrast is not great to be able to see what I am doing in the program. I'll find some time to post some screencasts of the demonstrations I did with the software later on.