Explore the world of congruence in this mini-lesson. Provides a definition and examples that help with understanding its properties.

[Free Registration/Login Required] In this flipchart, students use the drawing and interactive tools in Activstudio to apply geometric properties and relationships to describe, compare, and draw two-dimensional shapes and figures.

You will enjoy this shape game. It tells you the name of a shape and all you have to do is click on the correct shape. If you get confused you can have another try.

Do you need practice remembering or learning different geometry vocabulary words and definitions? This concentration game is the web site for you! There is a link to a list of terms with definitions you can click if you want to see if...

Look at the properties of 2D shapes to see which shapes can belong to the same group. Includes hints.

After reviewing the properties of different quadrilaterals, students answer questions about each type.

The challenge at this one page website, is to see how many trapezoids (British-trapeziums) you can find in the figure. When you have your results, you can easily check it right at the website.

Learn about several three-dimensional geometric shapes and the terminology used to describe them. Learn how to calculate their surface area and volume, and explore their mathematical properties.

Who was Pythagoras and what is his theorem? Explore this concept and its relationship to the measurement of a right triangle in this test prep lesson plan. The lesson includes an interactive worksheet where students discover the answers...

Based on building a hexagon, this activity from the Math Forum collection focuses on using different combinations of pattern blocks to create a hexagon. An online activity, pencil and paper method, literature connections, and a...

[Free Registration/Login Required] In this flipchart, students apply their understanding of geometric properties and relationships. Students use geometric properties and relationships to describe, compare, and draw two-dimensional shapes...

[Free Registration/Login Required] In this flip chart, students apply geometric sense by using the properties of two-dimensional and three-dimensional shapes to solve mathematical problems involving area and volume.

This tutorial features templates and instructions to make the following solids: tetrahedron, cube, octahedron, dodecahedron, and icosahedron.

Classify shapes based on pictures or attributes, such as angle types and side-lengths. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.