Using the Snapology Technique to Teach Convex Polyhedra

If a modular technique were being used, it was usually left to the folder to figure out which part of the polyhedron the unit represented. It is only in the past several years that authors have begun to define the part of the polyhedron the unit is making, but many books are available on the subject (e.g., [Kawamura 01, Simon 99, Cundy 61, Franco 99, Holdern 91, Wenninger 71]).