Annenberg Foundation
Geometry 3D Shapes: Euler's Theorem
How do you get a theorem named after you? Euler knows what it takes! The third lesson of five asks pupils to use an interactive activity to compare the faces, vertices, and edges of seven different three-dimensional solids. They use...
National Council of Teachers of Mathematics
The Math Forum: Means Proportional and Geometric Means
Dr. Math helps a student discover the meaning of the mean proportional of two numbers. Detailed explanation with examples.
National Gallery of Art
National Gallery of Art: The Art Zone
Ten interactive activities that allow you to use the computer to create and manipulate works of art.
Smithsonian Institution
The Fabric of Moroccan Life Find the Design
The designs found in Moroccan weaving and textiles often come from things of everyday life or from basic geometric shapes. Given on this site are seven examples of common designs for you to explore and enjoy.
Scholastic
Scholastic: I Spy
These interactive matching games for elementary age students combine visuals of familiar objects and rhyming riddles to create brain-teasing puzzles.
PBS
Pbs Learning Media: Cyberchase: Crack the Code
Cyberchase video in which the CyberSquad must get into a vault before Hacker, Buzz, and Delete by cracking a code of shapes and numbers. [3:20]