A Teacher's Guide to Building the Icosahedron as a Class Project

Table of Contents

• Introduction
• Materials needed
• Cutting the template
• Coloring the faces
• Assembling the structure
• Exercise: How big is your icoshedron?
• The Geometry Center's 6-foot icosahedron
• Variations

Table of Figures

• An icosahedron
• Possible ways to cut one triangle from a rectangle
• Possible ways to arrange many triangles in a rectangle
• A makeshift compass
• A template for a triangle
• One face of the icosahedron
• The "net" for the icosahedron
• The Geometry Center's 6-foot icosahedron

The Geometry Center Home Page

Author: Frederick J. Wicklin <fjw@geom.umn.edu>
Comments to: webmaster@geom.umn.edu
Created: Summer 1994 --- Last modified: Jul 21 1996
Copyright © 1994-1996 by The Geometry Center All rights reserved.