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...
Oregon State University
Volcano World
Read stories and legends about volcanoes, check out volcano-inspired art, get school project ideas, and play volcano games.