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This activity about cryptographic techniques illustrates a situation where information is shared, and yet none of it is revealed.

In this activity, learners watch a video to learn about a couple who built a home out of shipping containers in Brooklyn, New York.

In this math lesson, learners apply measurement skills to determine, in dollar bills, the capacity of a suitcase.

In this math activity, learners role-play as wait staff at the Kidtropolis Diner. It's the end of the night and it's time for the staff to collect their tips.