Learn how to fold origami poppers out of paper. It helps to develop spatial sense by working with geometric shapes, and it also makes a surprisingly loud popping sound!

Learn the names of the polygons with Peter Weatherall’s Polygon Song.

Play with Buzz, Delete, and their animal friends through three math-based games focused on geometry, spatial reasoning and problem solving.

A trapezoid is a quadrilateral with 2 parallel sides

Polygons drawn on square dotty paper have dots on their perimeter (p) and often internal (i) ones as well. Find a relationship between p, i and the area of the polygons.

How many diagonals does a regular icosagon (20 sides) have?

How many different hearts can you make?

If the diagram were continued to include the entire pentagon and the entire square, which shape would extend below the other?