Use this lesson plan to assess students' understanding of symmetry and their ability to express that understanding both in writing and with paper.

Investigating designs and shapes in quilts around the world is the activity in this internet exploration. Learners will also design their own quilt on paper or on the computer. Acrobat Reader required.

The Math Forum defines and illustrates geometric tessellation.

A "one star" geometry problem that requires problems solving skills and exercises ones visual-spatial abilities. One may want to cut out the pieces to solve the problem as a puzzle.

A "one star" geometry problem that requires problems solving skills and exercises ones visual-spatial abilities.

A "one star" geometry problem that requires problems solving skills and exercises ones visual-spatial abilities.

Explore the literature connections, online activity, pencil and paper activity, and the manipulative investigation of patterns and geometric shapes on this page!

Cookie Monster is Gobble in Lord of the Crumbs! Hone those executive functioning skills by practicing patience and strategies when you have to wait for something. Stop and think about what comes next in patterns and sort objects by color.

Calling all Shape Detectives! In this weeklong adventure, the children will explore and search for basic shapes as they go on a shape hunt. They will describe, match, sort and compose a variety of two-dimensional shapes, and create a...

These interactive matching games for elementary age students combine visuals of familiar objects and rhyming riddles to create brain-teasing puzzles.

What are square numbers? Use tiles at this one page website to discover the pattern of square numbers. See if you can solve the challenge. Once you have your solution you can check the solution given 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.

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.

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.

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.

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.

Go to Tessellation Town on Tile Island and create a variety of tessellations.

This interactive activity gives you an opportunity to color in a tessellation that is different from the usual. Read the short introduction to find out more about this tessellation that doesn't repeat.

Explore tessellations with real world applications in this activity from the NCTM Math Challenges for Families series. Figure out what shape you would use to create a legal envelope from a single sheet of paper. Then discover how...

An excellent compilation of activities that engage parents and children in math explorations at home. Detailed lessons covering a wide range of math topics such as fractions, measurements, money, data collection, and math in newspapers....

This applet gives you practice finding the area of a triangle. Great place for students to "discover" how you find the area of a triangle. Directions are just a click away. [Requires Java.]

Tessellations are explained and described at this website. Three basic rules are given for creating tessellations.

Use this game to improve your knowledge and understanding of triangles and naming vertices. Just read and follow the instructions! [Requires Java.]

Investigate the relationship between shapes and identifying traits or characteristics. A concise lesson that explores physical, chemical, and observable traits in the shapes around us. Build on this knowledge by playing the Web Colors...