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    National Center for Women and Information Technology (NCWIT)
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    Even fast computers are limited to how quickly they can solve problems. One way to speed things up is to use several computers at once. In this physical activity, learners act as multiple networked...

    $1 - $5 per group Ages 8 - 14 45 to 60 minutes
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    Science Museum of Minnesota
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    Here's a very simple activity if you have paper and scissors: make one cut, unfold, and you have a beautiful star! A great way to learn about polygons and origami mathematics.

    1 cent - $1 per student Ages 8 - 18 Under 5 minutes
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    National Center for Women and Information Technology (NCWIT)
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    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. They learn that different pathways...

    1 cent - $1 per student Ages 8 - 14 45 to 60 minutes
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    National Geographic Society
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    In this activity, learners discover that training a robot can be hard work! Learners investigate how robots complete a task by following a list of sequential instructions. Learners write algorithms...

    free Ages 6 - 14 30 to 45 minutes
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    National Center for Women and Information Technology (NCWIT)
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    Computers are often used to put lists into some sort of order—for example, names into alphabetical order, appointments or e-mail by date, or items in numerical order. In this activity learners...

    $1 - $5 per group Ages 11 - 14 45 to 60 minutes
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    Community Science Workshop Network
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    In this activity, learners construct three math puzzles out of simple materials like wood, string, and Styrofoam. The first two puzzles, called "Remove the Loop" and "Two Washers,...

    $1 - $5 per student Ages 6 - 14 1 to 2 hours
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    Oregon Museum of Science and Industry
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    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. The idea is that computers and...

    1 cent - $1 per group Ages 6 - 14 10 to 30 minutes
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    Science Museum Group
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    In this activity, learners make their own encrypted code to pass along secret messages using a printable cipher wheel. Learners explore mathematical concepts and create their own simple algorithms...

    $1 - $5 per student Ages 8 - 18 30 to 45 minutes
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    Computer Science Unplugged
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    In this game, learners experience how computers divide a big problem into many smaller ones and how they use binary "yes"/"no" questions. Learners play a game similar to 20...

    1 cent - $1 per group Ages 8 - 18 5 to 10 minutes