This is a collection of sites about pattern blocks and tangrams. There are several interactive sites that allow you to manipulate blocks and tangrams online. Also includes hands-on classroom activities that focus on polygons, area, angles, fractions, and patterns. There is a link to an eThemes Resource on geometric shapes.
This is a collection of sites about geometric shapes and polygons. Includes definitions plus examples of them in everyday life. Learn about prisms and polygons. Includes interactive sites with games and manipulatives.