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    Lawrence Hall of Science
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    This activity gets learners looking at 6-sided shapes in nature, including the cells of a beehive, as well as other shapes. Learners use the activity's shape chart to keep track of all the...

    1 cent - $1 per group Ages 4 - 14 1 to 7 days
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    The Exploratorium
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    In this activity, learners use their hands as tools for indirect measurement. Learners explore how to use ratios to calculate the approximate height of something that can't be measured...

    free Ages 11 - 14 10 to 30 minutes
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    PBS
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    In this math lesson, learners arrange pattern blocks to create tessellations and to explore geometric patterns. Learners first explore making patterns with a variety of pattern blocks. They next...

    free Ages 11 - 14 45 to 60 minutes
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    WGBH
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    This simple construction activity teaches the importance of architectural structure. Learners build and test designs for a paper "doghouse" strong enough to hold the weight of a jumbo dog...

    1 cent - $1 per student Ages 6 - 11 45 to 60 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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    Community Science Workshop Network
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    In this activity, learners build inexpensive kaleidoscopes using transparency paper and foil (instead of mirrors). Use this activity to introduce learners to concepts related to optics, light,...

    $1 - $5 per student Ages 8 - 14 10 to 30 minutes
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    Children's Museum Of Houston
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    In this activity, learners use tangrams ( 7-piece puzzle tiles) to assemble a variety of shapes. Tangrams are ideal for improving spatial reasoning and geometry properties. Discuss the properties...

    1 cent - $1 per group Ages 6 - 8 10 to 30 minutes
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    The Exploratorium
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    In this activity, learners create angle-measuring devices--protractors--out of paper. Learners follow a series of steps to fold a square sheet of paper into a triangular Pocket Protractor. Learners...

    1 cent - $1 per student Ages 11 - 18 5 to 10 minutes
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    The Exploratorium
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    In this activity, learners follow simple directions to explore and create platonic solids. Learners count the number of faces, edges, and vertices in the structures they make out of paper and look...

    1 cent - $1 per student Ages 11 - 18 30 to 45 minutes
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    Science Museum of Minnesota
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    Is a square stronger than a triangle? Use tongue depressors to build simple shapes. Then apply a little weight to them and see what happens! This activity comes with useful tips for building the...

    1 cent - $1 per student Ages 4 - 8 5 to 10 minutes

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