| 1. | Stellated Icosahedra | | | Background information and images of the 59 possible stellated icosahedra.
www.mathconsult.ch |
| 2. | handsonmath.com | | | Geometric model building courses to improve understanding of geometry, using a Matrix kit for sale on the site that can be used in order to create the models yourself.
www.handsonmath.com |
| 4. | The Geometry Junkyard | | | List of links to sites on geometric properties of polygons, polyhedra, and higher dimensional polytopes.
www.ics.uci.edu |
| 6. | Symmetry, Crystals and Polyhedra | | | Data on polyhedra, the different types, compounds of polyhedra, stellations, stewart toroids, zonohedra, and tesselations. Also discusses crystallography and symmetry.
www.uwgb.edu |
| 7. | H.S.M. Coxeter | | | Biography of Donald Coxeter (1907-) from an online History of Mathematics.
www-groups.dcs.st-and.ac.uk |
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