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    Pratt School of Engineering, Duke University
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    Learners display their findings after a study of surface area and volume. They build a mobile to show a commercially available box and a constructed cubical box of the same volume. Learners also...

    1 cent - $1 per student Ages 11 - 14 1 to 2 hours
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    WGBH
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    In this activity, learners investigate how geometry plays a role in perspective. The lesson begins with a demonstration, in which learners of the same height stand side by side near the end of a...

    1 cent - $1 per group Ages 8 - 18 45 to 60 minutes
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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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    Oregon Museum of Science and Industry
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    In this activity (on pages 55-66 of PDF), learners fold paper into origami shapes and then combine several identical shapes into a three-dimensional structure. There are clear, colorful...

    1 cent - $1 per student Ages 4 - adult 45 to 60 minutes
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    Science Museum of Minnesota
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    Use geometry, a ruler, and a steady hand to create these amazing unfurling paper folds! Be sure to check out Simon Guest's folded "super structure" link, and to see great paper...

    1 cent - $1 per group Ages 8 - adult 1 to 2 hours
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    Children's Museum Of Houston
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    In this game, learners are stuck in a right turn only world! Learners take turns rolling a die and moving their game pieces along the lines of a grid to get "home," by only making right...

    free Ages 8 - 11 10 to 30 minutes
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    The Exploratorium
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    In this activity, learners explore scale by using building cubes to see how changing the length, width, and height of a three-dimensional object affects its surface area and its volume. Learners...

    1 cent - $1 per student Ages 11 - 14 10 to 30 minutes
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    Children's Museum Of Houston
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    In this hands-on activity, learners use toothpicks to build different triangles and squares and then use the toothpicks to build and solve some tricky shape puzzles. This lesson plan contains Texas...

    $1 - $5 per group Ages 6 - 11 5 to 10 minutes
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    Children's Museum Of Houston
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    In this math activity, learners experiment with the concept of symmetry. Learners use mirrors to identify which pictures, letters, and shapes are symmetrical and then complete the missing halves...

    1 cent - $1 per student Ages 4 - 8 10 to 30 minutes
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    The Exploratorium
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    In this activity, learners use geometry to predict the shape of carbon. Learners twist and attach chenille stem pieces that represent bonds between different carbon atoms. Information about...

    $1 - $5 per group Ages 11 - 18 10 to 30 minutes

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