I had some issues with Geogebra and downloading it, for whatever reason it does not want to download on my computer. I did however take a look at the site and look at other people's projects. I feel like I would have had some of the dame issues that Keisha had talked about where she said it was similar to Scratch in that it was a little confusing at first. If that is the case I probably would have had to watch the tutorials and use and "help" icons that the site provided.
I think Geogebra could be a great tool used in the classroom. With much of the new technology that is being created all the time it is hard to comb throw all of it and find some that is worth using int he classroom. However I think Geogebra, after learning how to use it, would be a tool that students and teachers could use. In my exploration of the different projects I found just as many science projects as math. Although the two are closely related I haven't seen many sites like this one that facilitate both. Therefore I think that as a teacher you could use Geogebra as a math tool but also for science lessons in chemistry or electricity or anything that needs to be graphed or illustrated mathematically.