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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 repeat patterns in two and three dimensions to create tessellations. This activity is divided into four parts, in which learners practice tessellating with one shape, two...

    $1 - $5 per group Ages 8 - 11 1 to 2 hours
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    The Exploratorium
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    In this activity, learners arrange triangles together to make patterns to create paper quilts. Learners experiment with arranging the triangles in different ways to make various designs. Use this...

    1 cent - $1 per student Ages 4 - 8 30 to 45 minutes
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    The Exploratorium
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    In this math activity, learners observe and sketch cracking patterns in pavement. Learners use a protractor to measure and label the angles of their sketches and conclude if some angles are more...

    1 cent - $1 per student Ages 11 - 18 10 to 30 minutes