Given an unlimited number of a specific type of equilateral, isosceles, and right triangles create as many tetrahedra as are possible. Includes printout.

In this enrichment game, the nets for nine solids are displayed. The twist is that each net has been cut into two pieces. The challenge is find the pieces that go together.

This creative applet allows you to tessellate variations you create starting with either a triangle, rectangle or hexagon. Directions are only a click away.

This lesson plan deals with tessellations and their geometric concepts. Upper elementary and middle school students will also explore polygons, symmetry, analyze patterns and explore the role of mathematics in nature and culture.

This upper elementary and middle school lesson plan examines the mathematical nature of art, tilings and tessellations. Learners will also explore polygons, symmetry, analyze patterns and explore the role of mathematics in nature and our...

This robust lesson plan for upper elementary and middle school grades introduces the concepts for lines, rays, line segments, and planes. Resources are linked to it and ready for your use.

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.

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....

Students can sharpen their logic and spatial relationship skills while working on this challenge on this one page website. The solution is available to double check your solution.

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.

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

At this one page web site see if you can solve this puzzle involving the edges of an octahedron. You will definitely need to use your problem solving and spatial reasoning skills for this!

In this lesson, students learn how the diagonals of a rhombus are related. They use interactive sketches to learn about the properties of the angles and diagonals of squares, rectangles, rhombuses, parallelograms, and other...

In this lesson, young scholars discuss what they know about shapes and their characteristics through a paper-folding activity that results in a parallelogram. Included are examples, discussion questions, and a reflection activity....

Improve your logic and net recognition skills with this learning game. Solution included.

Have fun and learn by making a box and then find out its maximum volume as well as other problem-solving activities, including making a table of your results and drawing a graph.

How many different cuboids can you make? Learn how and learn how to represent data with your results.

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

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.

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