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Battleships: Searching Algorithms
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This activity explores the main algorithms that are used as the basis for searching on computers, using different variations on the game of battleships.

Twenty Guesses: Information Theory
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This activity introduces the idea that computer scientists measure information by how "surprising" a message is.

Programming Languages: Marching Orders
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In this activity about computer programming, learners follow instructions in a variety of ways in order to successfully draw figures.

Paper Bridges
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In this activity, learners build bridges using paper and explore how much weight each bridge design can support.

Straws and Pins
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In this activity, learners build bridges and cantilevers in a series of "building out" challenges with straws and pins.

Colour by Numbers: Image Representation
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This activity shows learners how computers use numbers to represent pictures. A grid is used to represent the pixels (short for picture elements) of a computer screen.

You Can Say That Again!: Text Compression
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This activity helps students learn how computers "compress" text by identifying repeating patterns of letters, words, and phrases.

Card Flip Magic: Error Detection & Correction
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This magic trick is based on how computers detect and correct data errors.

Garden Poles
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In this activity, learners build large-scale structures and cantilevers in a series of "building out" challenges with garden poles and tape.

The Muddy City: Minimal Spanning Trees
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In this puzzle, learners investigate the decisions involved in linking a network between houses in a muddy city.

Newspaper Bridges
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In this activity, learners build bridges out of newspaper and tape to explore how structures are designed to bear loads.

Skewers and Garden Poles
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In this activity, learners build scaled-down structures and cantilevers in a series of "building out" challenges with bamboo skewers and tape.