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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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    NCTM Illuminations
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    In this math activity, learners are challenged to create aluminum foil boats that will hold plastic bears until the boats sink. The lesson serves as a fun, hands-on way to collect data. Data from...

    $5 - $10 per group Ages 8 - 14 45 to 60 minutes
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    NCTM Illuminations
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    In this math lesson, learners search for hidden ducks in the room without collecting the ducks and design their own method for keeping track of what they find. Discussion follows to compare methods...

    $5 - $10 per group Ages 4 - 8 45 to 60 minutes
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    NCTM Illuminations
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    In this math activity, learners model a bungee jump using a BarbieĀ® doll and rubber bands. The distance which the doll will fall is directly proportional to the number of rubber bands, so this...

    $1 - $5 per group Ages 11 - 18 45 to 60 minutes
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    NCTM Illuminations
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    In this math lesson, each learner constructs a tetrahedron and describes the linear dimensions, area and volume using nonā€‘traditional units of measure. Four tetrahedra are combined to form a...

    $1 - $5 per group Ages 11 - 18 1 to 2 hours
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    NCTM Illuminations
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    In this math lesson, learners practice addition facts (with sums of 5, 6, 7, and 8) in a concentration-game format using dominoes. Then, learners generate sums of given numbers using a calculator,...

    1 cent - $1 per group Ages 4 - 8 45 to 60 minutes
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    NCTM Illuminations
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    In this math activity, learners explore the history of the Stomachion (an ancient tangram-type puzzle), use the pieces to create other figures, learn about symmetry and transformations, and...

    1 cent - $1 per student Ages 8 - 14 45 to 60 minutes