Border & Frieze Patterns
David Reid provides example pictures of the seven frieze patterns.
An annotated bibliography including a section which reviews articles relating to the seven frieze patterns.
General Geometry
A list of geometric terms with explanations.
Geometry Sites for Elementary Teachers
This website contains information and resources that are designed to help teachers develop a deeper understanding of geometry and measurement concepts and to assist in designing meaningful instruction for elementary students.
M.C. Escher
There are about 60 prints in this gallery maintained by David McAllister.
A short article on the diverse elements of Escher's art including tessellations, platonic solids, space distortions, and spatial illusions.
"The site for everything Escher."
Origami
Many elaborate and beautiful origami figures by Joseph Wu and others.
This page is a collection of links to geometric origami sites.
A very brief annotated bibliography of origami books.
Pattern Blocks
An easy to use applet for manipulating and making designs with the pattern block shapes.
Polyhedra
A collection of computer-generated polyhedral images and a large collection of links.
A brief description of the concept of polyhedra.
Polyhedral solids, stellated polyhedra, compound solids, and dual polyhedra.
A guide to building an icosahedron with supporting images.
Information about teaching geometry and art.
Solid Geometry
Really slick application which allows the formation of pyramids and prisms (skew and right) and their rotation. For elementary and college students. Shockwave plug-in needed.
Symmetries
The four symmetries of the plane and some associated problems.
The four isometries of the plane.
Cute application for drawing snowflakes. For elementary and college students. Shockwave plug-in needed.
A five-pointed star!
A PDF file showing how to fold and cut snowflakes.
Fun activity building quilt blocks with one of four types of symmetry.
Tessellations
Tessellation of the plane by triangles and construction of templates for the regular tetrahedron or regular octahedron.
Tessellations of the hyperbolic plane (non-Euclidean geometry).
Tessellations created by elementary, middle, and high school students.
A list of tessellation tutorials using different software packages (such as Claris Works, PC Paintbrush, etc.) and by hand.
Wallpapers Patterns
A first-class presentation and gallery on wallpaper symmetry with illustrations from oriental rugs.