Visit the Magic Treehouse and take your class on a trip through time with a reading of the children's book Mummies in the Morning. Using the story to spark an investigation into Egyptian culture, this literature unit engages...

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 tutorial provides illustrations for regular 2-D shapes as well as a definition for polygons and for regular polygons.

This interactive exercise focuses on discovering the relationships between two and three-dimensional shapes.

Provides a list of area and perimeter formulas for two-dimensional shapes and volume and surface area formulas for three-dimensional solids.

This site provides an in-depth definition of a two-dimensional figure and a three-dimensional figure. Related terms include arcs, vertices, polygon, and many more.

Brush up on your math skills relating to the area of rhombuses then try some practice problems to test your understanding.

Brush up on your math skills relating to the area of triangles then try some practice problems to test your understanding.

Brush up on your math skills relating to rectangles then try some practice problems to test your understanding.

Brush up on your math skills relating to squares then try some practice problems to test your understanding.

This website has basic definitions for most polygons, regular and irregular.

Introduces how to set up and solve simple geometric-figure word problems. Includes advice regarding formulas to memorize.