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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.

In this activity, learners are challenged to calculate their own weight on various planets using a scale and calculator. Older learners may be challenged to do so without using calculators.

This is a classic exercise for visualizing the scale of the Solar System.

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

In this activity, learners build a scale model of the solar system using a roll of toilet paper.

This activity offers learners and their families several ways to raise their awareness together about home water.