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Cipher Wheel
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In this activity, learners make their own encrypted code to pass along secret messages using a printable cipher wheel.
Tourist Town: Dominating Sets
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In this activity, learners use a fictitious map of "Tourist Town" and counters to problem solve how to place ice-cream vans on street intersections so that every other intersection is connected to one
What am I?
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In this activity, learners examine nanoscale structures of common things.
Cryptographic Protocols: The Peruvian Coin Flip
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This activity about cryptographic techniques illustrates how to accomplish a simple, but nevertheless seemingly impossible task—making a fair, random choice by flipping a coin between two people who d