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This is an activity to do when there is a solar eclipse!

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 math activity related to light, learners assemble a photometer and use it to estimate the power output of the Sun.

In ancient Chaco Canyon, the people used a "sun dagger" petroglyph to mark the passing of seasons.