This site from The Math Forum is a great site if you are looking for activities to engage your students in learning about line symmetry. Peruse this collection of activities for one or two or four that would be right for your students....

A geometry lesson that examines the history and structure of ancient pyramids and engages students in constructing pyramid models. A comprehensive lesson that considers students with diverse learning styles. Math concepts introduced...

Test your logic, polygon properties, and pattern recognition skills working on this challenge. Solution included.

The waiters at Polygon's Restaurant need your help. See if you can use your problem solving and patterning skills to help them solve this math challenge. Discover how developing these skills could be useful in real life situations, in...

Sharpen your logic and and pattern recognition skills with this four triangles puzzle. The solution is available to check your work.

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

What lowercase letters read the same both upside down and right side up? If you have the answer, then you can handle this geometric symmetry math challenge. A one-page activity from the NTCM Math Challenge for Families collection....

The purpose of this task is to identify the structure in the two algebraic expressions by interpreting them in terms of a geometric context, a series of squares filled with dot arrangements. Students are asked to notice a pattern and...

On this one page website expand your logic, symmetry and pattern recognition knowledge while working on this challenge. The solution is available to double check your solution.

This one page Mathworld site has a number of examples of semiregular tessellations. A definition and a small amount of related information is given at the bottom of the page.

On this one page website sharpen your logic, spatial sense, and pattern recognition skills while working on this challenge. The solution is available to double check your solution.

At this site see if you can solve the "Diamond 16" puzzle. Change the patterns to create ordinary or color exchange symmetry. This is just one of several challenging puzzles at this site. Links to similar puzzles and games.

This one page website can expand your logic, Motion Geometry and pattern recognition knowledge. The solution is available to double check your answers.

Four basic geometric shapes - the triangle, parallelogram, trapezoid, and hexagon - are examined to determine how many of one shape fits "inside" another. For instance, how many triangles are "in" a hexagon. Ten questions with solutions...