A succinct test for assessing geometry concepts. Assessment is scored online giving immediate feedback. An excellent assessment tool.

In this task, students are shown three unit squares and two line segments connecting two pairs of vertices. They are asked to find the area of a triangle formed by intersecting lines. They can solve it using coordinate geometry or...

Lesson and activities focusing on line reflection. Here you will find a detailed explanation of the concept with picture examples, opportunities for interactive practice, and supporting classroom activities in the teacher resource pages.

This site contains the definitions for many geometric terms including transformations.

[Free Registration/Login Required] In this flipchart, students apply their geometric sense by creating a design using tessellations.

See if you can figure out which symbols are on which cube face at this one page website. The solution is just a click away once you have your solution in mind.

Use the shapes provided and figure out how they fit together to make a 3 X 3 cube at this one page website. The solution is readily available right at the website.

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.

Think about the surface area of a cube. At this one page website, you use that information to complete the challenge. Solutions are offered right at the website.

[Free Registration/Login may be required to access all resource tools.] In this tutorial, students learn about the rules that operate in the rotation of 2-D figures on a coordinate grid. Includes video, lots of examples, review...

In this activity, students will identify and record ordered pairs from a coordinate plane. They will examine symmetry about the axes, reflections, and symmetry in nature. They understand geometric concepts like area and perimeter, and...

This is the first of a series of tasks aiming at understanding the quadratic formula in a geometric way in terms of the graph of a quadratic function. Here the student works with an explicit function and studies the impact of additive...

In this activity, you will explore the invariant properties of rotations and the results of rotations in the coordinate plane.

This website, from the University of Edinburgh, provides a lengthy glossary of computer graphics terms written by Olin Lathrop, author of "The Way Computer Graphics Work". This site provides simple definitions of basic terms; no graphics...

This one page website offers an excellent challenge involving a cube. Can you visualize it? Check out the solution right at the website.