Geometry

Geometry Activities from the
National Library of Virtual Manipulatives
Tetris

Fill the vault with shapes. 

Exploring Geometric Solids & Their Properties

Study shapes, look for patterns, and construct some shapes at this site from Illuminations i-Math Investigations.

Investigating the Concept of a Triangle

From the NCTM website. Includes an investigation for students as well as discussion for teachers.

Math Angles Made Easy

Information and exercises - all about angles!

Shape Sorter Tool

Sort shapes according to their properties using Venn Diagrams. Check with your partner to see how you did!

Developing Geometry Understandings with Tangrams

Tangram puzzles & challenges, with concept and instructional information for teachers as well. From the NCTM website.

Exploring Properties of Parallelograms & Rectangles

Tasks, discussion and reflection facilitate developing understandings about these two geometric shapes.

Learning Geometry and Measurement Concepts by Creating Paths & Navigating Mazes

Students combine their knowledge of geometry, measurement and number to solve challenging problems with their virtual lady bug.

Cutting Corners

Can you cut a rectangle to make 2 triangles? How about cutting a trapezoid to make one triangle and one parallelogram? Try it here!

Can You Get Your Turtle to the Pond?

Estimate length and angle measure to create a path for your virtual turtle.

Isometric Drawing Tool

Draw figures using edges, faces, or cubes & view in 3D or 2D!

Illunminations Shape Cutter

Create shape puzzles and learn how to use slides, turns, and flips.

Graph Mole

Learn about coordinate pairs and play a game to test your understanding.

Billy Bug

Test your understanding of coordinate pairs.

Mathematics Glossary

Multimedia glossary of math terms developed by Harcourt Brace