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Learners create an Incan counting device called a quipu (pronounced kee-poo).

In this activity about human interface design issues, learners help the Oompa-Loompas of a great chocolate factory solve different problems.

In this technology activity, learners explore digital imaging and pixels. Learners "transmit" an image to a partner by creating an image on grid paper.

In this computer science activity about finite-state automaton (on page 45 of the PDF), learners use a map and choose various pathways to find Treasure Island.

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.

Learners make their own simple slide rules out of paper and learn how they work.

In this activity about encryption, learners cut out a secret decoder badge from a handout and use it to encode messages to each other.

In this robotics activity, learners find ways to express emotions and feelings using only body movements, not facial expressions.