Search Results

In this math lesson, learners use hinged mirrors to discover that regular polygons are composed of triangles tessellating around a center point.

This simple construction activity teaches the importance of architectural structure. Learners build and test designs for a paper "doghouse" strong enough to hold the weight of a jumbo dog biscuit.

In this activity (on pages 41-47 of PDF), learners explore tesselating geometric patterns (repeated shapes, similar to the art of M.C. Escher).

In this activity, learners will measure the length of a shadow and use the distance from the equator to calculate the circumference of the earth.

In this activity, learners explore geometry and spatial relationships as they figure out how to arrange tables for a party.

In this activity, learners take a turn contributing a closed figure made of six squares to a large grid; each must be different from all the others on the grid so far.

In this activity, learners use cooperation and logical thinking to find solutions to network problems on the playground.

In this activity (on pages 49-54 of PDF), learners play with tangrams, a set of triangles, squares and a parallelogram that can combine into a larger square as well as all sorts of other shapes.

If you have 3-foot dowels and rubber bands, you can can started on this fun and open design challenge. You can make structures big and small: make it so you can fit your parent into it!

In this math activity, learners build Peppy the dog the best trail and park for running around.

In this math activity, learners use what they know about shapes to copy a friend's hidden picture. Learners create a design out of pattern blocks and then hide their picture behind a screen.

In this activity (on pages 55-66 of PDF), learners fold paper into origami shapes and then combine several identical shapes into a three-dimensional structure.

In this activity, learners slide shapes to create unusual tiled patterns.

Build a house you can fit inside, using cardboard tubes.

In this geometry activity, learners explore networks painted on playgrounds, such as a four square court, and draw their own.

In this group activity, learners make multi-sided polygons with string.

In this activity, learners find as many combinations of a hundred as they can using various puzzle pieces from a hundred square grid paper.