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Two Washers
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In this activity, learners create a mind and math puzzle that requires a three-dimensional solution.
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Slide Rules
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Learners make their own simple slide rules out of paper and learn how they work.
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Topological Puzzles
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In this activity, learners construct three math puzzles out of simple materials like wood, string, and Styrofoam.
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Breaking the Code: Mayan Math
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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.