The main reason for this post is to inform you all about Project Spectrum. It is a project to provide people with Austism an avenue for creativity. The educators section provides plenty of information. This is from the site:
"Project Spectrum was created to give people with autism the opportunity to express their creativity and develop a life skill using Google SketchUp 3D modeling software.
The idea for Project Spectrum originated when we began getting phone calls and emails from users telling us about how much kids on the autism spectrum were enjoying SketchUp. As the calls kept coming in, we learned that people with autism tend to be visually and spatially gifted—that, in fact, they think in pictures. When people with these gifts get their hands on powerful, easy-to-use 3D design software like SketchUp, sparks tend to fly."