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In this activity, learners create a mind and math puzzle that requires a three-dimensional solution.

In this activity, learners explore center of gravity, or balance point, of stacked blocks.

In this activity, learners will engineer a new shape and use it to create a new pattern with no wasted space.

In this activity, learners will explore pi and the mathematical relationships between a circle's diameter, circumference, and radius.

Learners can program a compass to draw a circle by itself using a Pico Cricket, some Legos, and lots of tape! Pico Cricket is required.

In this activity, learners will explore two-dimensional shapes that are found in three-dimensional shapes. Learners will explore geometry, design, color and tool use through this activity.

This is a game that is sure to sharpen players' basic math skills. Players must use four randomly selected numbers to create an equation that equals a fifth number.

In this activity, learners will explore how and why weight distribution works.

In this activity, learners make a device called a phenakistoscope, which displays a continuously looping animation consisting of images drawn onto a spinning disc.

Learners make their own simple slide rules out of paper and learn how they work.

In this activity, learners construct three math puzzles out of simple materials like wood, string, and Styrofoam.

In this activity, learners make their own pinhole viewer in order to measure the size of the sun.

In this activity, learners will explore how product barcodes are scanned accurately and be able to "guess" the last number in a 13 digit barcode correctly every time.

This is a lesson plan for an activity in which learners, playing the role of archeologists, use math concepts about number bases to decipher the Dresden Codex, an ancient Mayan document.

This assortment of mathematical games can be played while traveling.