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In this activity (on page 2), one person "programs" the other like a robot to move through a space, trying to get them to avoid obstacles and reach a goal.

In this activity, learners make their own encrypted code to pass along secret messages using a printable cipher wheel.

In this activity, learners construct three math puzzles out of simple materials like wood, string, and Styrofoam.

Even fast computers are limited to how quickly they can solve problems. One way to speed things up is to use several computers at once.