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    Computer Science Unplugged
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    In this puzzle, learners investigate the decisions involved in linking a network between houses in a muddy city. It can lead on to a discussion of minimal spanning tree algorithms for optimizing...

    1 cent - $1 per student Ages 8 - 18 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 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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    Oregon Museum of Science and Industry
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    In this activity about encryption, learners cut out a secret decoder badge from a handout and use it to encode messages to each other. They can also create their own codes that are different from...

    1 cent - $1 per student Ages 8 - 14 30 to 45 minutes
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    Twin Cities Public Television
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    In this technology activity, learners explore digital imaging and pixels. Learners "transmit" an image to a partner by creating an image on grid paper. Learners then use a code of zeroes...

    1 cent - $1 per group Ages 8 - 14 45 to 60 minutes
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    Computer Science Unplugged
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    In this activity, learners help a poor cartographer color in the countries on a map, making sure each country is colored a different color than any of its neighbors. Through this exercise, learners...

    1 cent - $1 per group Ages 6 - 18 30 to 45 minutes
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    Computer Science Unplugged
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    This activity lets learners participate in the process of reconstructing a phylogenetic tree and introduces them to several core bioinformatics concepts, particularly in relation to evolution....

    1 cent - $1 per group Ages 8 - 18 30 to 45 minutes
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    Computer Science Unplugged
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    In this activity about computer programming, learners follow instructions in a variety of ways in order to successfully draw figures. Through these exercises, learners will experience some of the...

    1 cent - $1 per group Ages 6 - 18 45 to 60 minutes
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    Aquarium of the Bay
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    In this activity (page 7 of pdf), learners research tide pool ecosystems, and then create brochures that "advertise" these environments. Working in groups or individually, learners study...

    1 cent - $1 per student Ages 8 - 11 2 to 4 hours
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    National Center for Women and Information Technology (NCWIT)
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    Computers store drawings, photographs, and other pictures using only numbers. Through this activity, learners decode numbers to create pictures using the same process that computers use. They can...

    1 cent - $1 per student Ages 8 - 14 45 to 60 minutes

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