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    NCTM Illuminations
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    In this math lesson, learners create parallelograms from square sheets of paper and connect them to form octagons. During the construction, learners consider angle measures, segment lengths, and...

    1 cent - $1 per student Ages 11 - 18 1 to 2 hours
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    NASA
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    In this activity (page 10 of PDF), learners approximate the area of the uppermost cross section of an impact crater using a variety of square grids. They conclude which angle of impact results in...

    $5 - $10 per student Ages 8 - 14 45 to 60 minutes
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    The Exploratorium
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    In this geology activity, learners create a model using a mixture of salt and sand inside a CD case. When the case is tilted or inverted, the mixture dramatically sorts into a layered pattern. With...

    $5 - $10 per group Ages 11 - 18 1 to 2 hours
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    Twin Cities Public Television
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    This activity (on page 2 of the PDF) is a full inquiry-based challenge related to motion and design optimization. Groups of learners will use construction paper to build a model bobsled run for a...

    $1 - $5 per group Ages 8 - 14 1 to 2 hours
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    NASA
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    In this activity, learners discover that one way to cool an object in the presence of a heat source is to increase the distance from it or change the angle at which it is faced. Learners perform an...

    1 cent - $1 per group Ages 8 - 14 1 to 2 hours
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    The Exploratorium
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    In this optics/mathematics activity, learners use two hinged mirrors to create a kaleidoscope that shows multiple images of an object. Learners discover that the number of images reflected in the...

    $5 - $10 per student Ages 6 - 14 10 to 30 minutes
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    Utah Education Network
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    In this math lesson, learners follow step-by-step directions for making tangram pieces out of folded and torn paper. First, learners read "Grandfather Tang's Story" by Ann Tompert....

    1 cent - $1 per student Ages 8 - 11 10 to 30 minutes
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    New York Hall of Science
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    Discover geometry by creating shapes from loops of paper. In this activity, paper loops transform to give you totally new structures when you cut them. These curvy pieces of paper transform when...

    1 cent - $1 per group Ages 6 - 11 5 to 10 minutes
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    The Exploratorium
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    In this activity, learners walk the sides and interior angles of various polygons drawn on the playground. As they do so, learners practice rotating clockwise 180° and 360°. Learners discover there...

    1 cent - $1 per group Ages 11 - 18 5 to 10 minutes
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    WNET
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    In this online math game from Cyberchase, help Digit fill his scrapbook by pointing his telescope to each planet in the night sky. Learners pick an angle to direct the telescope and locate planets...

    free Ages 8 - 11 5 to 10 minutes

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