His tessellation demonstration video is exceptionally well made if you are
looking for a "how-to" resource. Included in the video are step-by-step
instructions for translations, rotations, and reflections. I've used this
video numerous times with kids and adults. Because you can stop, rewind, and
replay, it is particularly helpful.
For those of you who deal with animation in your classrooms, Jim also has a
Flash demo on his website.
If anyone is attending the AZ art ed assoc conference next month, Jim and I
will be presenting our newest video/book, "Dropping in on Grant Wood." We'll
have copies at the conference and Jim will autograph them for you.