The Geometry Junkyard
Recreational and computational geometry, from coloring puzzles to hyperbolic geometry. "These pages contain usenet clippings, web pointers, lecture notes, research excerpts, papers, abstracts, programs, problems, and other stuff related to discrete and computational geometry. Some of it is quite serious, but I hope much of it is also entertaining."
Internet Resources; Visual Materials
Instruction: Teaching Tools; Informal Education / Lifelong Learning
Teacher, Student, Parent / Informal Education