Fifteen different foam geometric shapes.
Angles and edges are labeled on the front to facilitate classroom discussion, both with and without the use of trigonometric functions.
The names of the shapes and their areas are printed on the back of each, allowing the shapes to be used as flashcards.
The set includes four worksheets for classroom use. The thickness of the pieces is 0.2" (0.5 cm), and the circle diameter is 4" (10 cm).