This site gives formulas for the area, volume, and surface area of various shapes.

Use this calculator to determine the volume, surface area, or other figure for a square pyramid, given the other numbers. Users set their parameters for two known variables of the pyramid and find what the unknown amounts would be.

This lesson describes three dimensional shapes and provides two interactive practice activities.

[Free Registration/Login Required] In this flipchart, students are introduced to the following 3-D shapes, including spheres, cylinders, and rectangular prisms.

You will have to use visualization to help you solve this challenge. At this one page website, you will be able to check your solution.

If you can visualize a cube and turn it around in your mind, then this is the challenge for you. This one page website has the solution available to check your thinking.

Get your spy glasses ready! In this weeklong adventure, children will explore shapes and their attributes and use this knowledge to decode a secret message. Children will learn about two-dimensional (flat) and three-dimensional (solid)...

Practice your 3D visualization skills by rotating 2D shapes. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Practice matching 2D nets to the 3D shapes the fold up into. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

A review of the 13 books of Euclid's "Elements" text can be found here. Each of the chapters are broken down into definitions, propositions, and common notations that are used throughout this overview.

This tutorial explains the concept of surface area, and then goes through multiple shapes offering the specific surface area formula for each one.

Basic practice problems involving cross sections of 3D objects.