A comprehensive guide for learning all about plane shapes with definitions, properties, types, solved examples, and practice questions.

Explore connections between a 2-dimensional net and a 3-dimensional box. Later in this section, use equations with variables to solve real world problems that use 2 and 3-dimensional objects.

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

Use this site to practice identifying shapes, colors, and animals with these interactive games.

Identifying 2D shapes in common objects and sorting according to shapes connects the real world to learning shape names and attributes.

Students make a series of geometric drawings of points, obtuse angles, rays, polygons, and the like. Each child is given one but not allowed to show anyone else. The drawing is then taped to the back of the child in front of them. The...

In this video segment [3:25] from Cyberchase, a plant expert shows Bianca the patterns and symmetry found in nature.