Curated OER
Tessellations
In this tessellations worksheet, 10th graders complete 8 various types of problems related to a tessellation of the plane by regular polyhedral. First, they draw the vertex figures for each of three regular tessellations and determine...
Wolfram Research
Wolfram Math World: Platonic Solids
This site, which is provided for by Math World, is a lengthy site describing the various properties and mathematical explanations of the figures.
Maths Challenge
Maths challenge.net: Platonic Solids
A "three star geometry problem" requiring knowledge of how to complete geometric proofs to prove that there are no more than five regular convex polyhedra.
CK-12 Foundation
Ck 12: Geometry: Polyhedra Study Guide
[Free Registration/Login may be required to access all resource tools.] This study guide reviews how to classify polyhedra, Euler's formula, and regular polyhedra.
Math Is Fun
Math Is Fun: Making 3 D Solids
This tutorial features templates and instructions to make the following solids: tetrahedron, cube, octahedron, dodecahedron, and icosahedron.