In my blog post from yesterday (the one right after this one) I mentioned that I created a bunch of new videos, showing how SketchUp can be used for 2D and 3D geometry. These videos were based on the material we presented at NCTM, which made 400 math teachers ooh and aah.
Yesterday I placed all seven videos on YouTube. One of these videos can be seen in yesterday's post, and here's one more as a teaser:
Go watch all of them, and send them to any math teachers you may know!
Anyone can design anything in 3D! www.3dvinci.net