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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.

1 cent - $1 per student Ages 6 - adult 30 to 45 minutes
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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.

1 cent - $1 per group Ages 8 - adult 30 to 45 minutes
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This activity helps students learn how computers "compress" text by identifying repeating patterns of letters, words, and phrases.

1 cent - $1 per student Ages 8 - adult 30 to 45 minutes
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This magic trick is based on how computers detect and correct data errors.

1 cent - $1 per group Ages 8 - adult 30 to 45 minutes
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In this design challenge, learners will use computational thinking to design their own board game.

1 cent - $1 per student Ages 8 - adult 30 to 45 minutes