http://www.youtube.com/user/KeyCurriculumPress#p/c/ED9B0FBDA2677A82/5/SdzLQWTraIQ
I chose an introductory video because GS is new to me. I liked how is suggested to let the students just "play" for a while to understand the functions. This has made me rethink my presentation this week. I was going to walk the class through the operation functions but I might just give them some time to "play". In retrospect, that is how I learned the operation buttons.
I also like the teacher that talked about using GS as a demonstration tool only. She has a valid point when she explained it is not always easy to get your students into a lab. This is very easy for me as I already have a laptop and projector.
After watching the sketchpad video, I would have to agree with you in allowing our classmates just to play with Geogebra. One of the teachers mentioned how she used Sketchpad for tests. That could be a point we touch on - showing them how to transport an image into the clipboard. I found a You-tube video that shows how to make virtual manipulatives with Geogebra. Those could be used as demonstration tools.
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