A comprehensive list of 2D shapes and 3D solids with everything from a triangle to a dodecahedron. Includes illustrations and short descriptions of attributes for each.

This online dictionary of art from Artlex provides terms is a valuable tool. Shape is on the Sg-Sh page. Just scroll down to Shape and read a definition with links to other important terms.

This applet helps students visualize the shapes of shadows cast by a cube with a light coming from different angles. This helps students visualize shapes from different angles and to identify, sketch and classify the cross-sections of...