Geometer's Sketchpad

I attended a math workshop in November and listened to a middle school teacher present her successes with Geometer's Sketchpad. It's a geometry program that allows student to visually see results. It also allows algebra students to graph equations. A very neat program. I gave Marie B., our Math C.C. the disk to try and she is excited about it also. We may try to do a workshop in March if we can learn it well enough by then. It is free to download at this site for 30 days but you cannot save or print. The package is about $1300. and comes with lessons and worksheets. There is an excellent tutorial at this site that has some basic lessons with lines, triangles and circles. I found this lesson about pinwheels that looked interesting. Hoping we can get the money.