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    Computer Science Unplugged
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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. This activity demonstrates three search...

    1 cent - $1 per group Ages 8 - adult 30 to 45 minutes
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    Science Museum of Minnesota
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    Learners can program a compass to draw a circle by itself using a Pico Cricket, some Legos, and lots of tape! Pico Cricket is required. This activity teaches learners how to program a micro...

    Over $20 per group Ages 8 - adult 45 to 60 minutes
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    NISE Network
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    In this activity, learners examine nanoscale structures of common things. Learners flip between macro and nanoscale images of familiar objects to learn about some ways that nanotechnology is...

    $1 - $5 per group Ages 4 - adult 5 to 10 minutes
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    Computer Science Unplugged
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    This magic trick is based on how computers detect and correct data errors. In the trick, a volunteer lays out a 5 x 5 square of identical cards colored on one side, with a random mix of sides...

    1 cent - $1 per group Ages 8 - adult 30 to 45 minutes
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    Computer Science Unplugged
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    This activity helps students learn how computers "compress" text by identifying repeating patterns of letters, words, and phrases. Students use poems or nursery rhymes as their source...

    1 cent - $1 per student Ages 8 - adult 30 to 45 minutes
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    Computer Science Unplugged
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    This activity about cryptographic techniques illustrates a situation where information is shared, and yet none of it is revealed. A group of learners will calculate their average age without anyone...

    1 cent - $1 per group Ages 11 - adult 5 to 10 minutes
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    Computer Science Unplugged
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    This activity explores what it means for a computer to be intelligent and introduces the topic of what a computer program is and how everything computers do simply involves following instructions...

    free Ages 8 - adult 10 to 30 minutes
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    Computer Science Unplugged
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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. Numbers indicate whether...

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