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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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    Utah Education Network
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    This math activity exposes early learners to a variety of three-dimensional objects. Learners bring geometric solids (everyday objects) from home. Learners sort and graph the objects on a Floor...

    free Ages 4 - 6 10 to 30 minutes
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    The Exploratorium
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    In this activity, learners build a paper stellated rhombic dodecahedron, a three-dimensional 12-pointed star. Learners use pyramid patterns to assemble tri-pyramids and then tape eight tri-pyramids...

    1 cent - $1 per group Ages 11 - 14 1 to 2 hours
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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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    Lawrence Hall of Science
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    Rocks are made of minerals, and minerals often have crystal shapes. In this fun activity about geometry in nature, learners create their own crystal shapes out of paper. What does a tetrahedron...

    1 cent - $1 per student Ages 8 - 18 45 to 60 minutes
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    Pratt School of Engineering, Duke University
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    Learners determine the surface area and volume of two identical boxes, and then figure out the dimensions of a cubical box with the same volume. Then they construct a new, cube-shaped box from one...

    1 cent - $1 per student Ages 11 - 14 2 to 4 hours