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In this activity, learners sample a star field to estimate the number of stars in the universe.

free Ages 8 - 14 45 to 60 minutes
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Learners explore their surroundings while reasoning about categories and counting.

free Ages 4 - 14 5 to 10 minutes
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This assortment of mathematical games can be played while traveling.

free Ages 4 - 14 10 to 30 minutes