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

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.

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

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