Twenty years ago, who knew about Johnson solids, Catalan solids, and dipyramids? Now we have great activities accessible to average students using 3D software, manipulatives, and Sketchpad, in which we can build, analyze, and gather data on these marvelous figures. Come find out about what these are and bring them back to your geometry classes!

Presentation Format: 9-12 Session
Grade Band Audience: 9 to 12