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    WNET
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    In this fun hands-on activity learners explore a simple machine: the lever. What happens to a load when you multiply the length of a lever? Find out here! The activity is related to an episode of...

    $1 - $5 per student Ages 8 - 11 45 to 60 minutes
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    Lawrence Hall of Science
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    Esta actividad enseña la proporción y razón por hacer que los aprendices hagan "ensaladas" que combinan tres tipos de frijoles en tres combinaciones diferentes. Las recetas están escritas...

    1 cent - $1 per student Ages 8 - 14 10 to 30 minutes
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    NASA
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    In this activity, learners discover how NASA engineers develop experimental aircraft. Learners will use geometry and algebra to design, construct, and test an experimental wing to achieve maximum...

    $10 - $20 per group Ages 11 - 14 1 to 2 hours
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    NCTM Illuminations
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    In this math activity, learners are presented with a problem: two bowls are suspended from the ceiling by springs. One bowl is lower than the other. In one bowl, you can only place marbles; in the...

    $1 - $5 per group Ages 14 - 18 45 to 60 minutes
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    Oregon Museum of Science and Industry
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    This is an online game about computer logic. Learners control a robot that navigates a maze of colored shapes, using AND, OR and NOT to decide which ones to jump over. Learners have to notice the...

    free Ages 8 - adult 10 to 30 minutes
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    NCTM Illuminations
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    This math lesson provides an introduction to the use of variables, and develops learners' algebraic thinking. Learners create "variable machines" out of paper to discover the "...

    1 cent - $1 per student Ages 8 - 11 45 to 60 minutes
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    PBS
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    In this math lesson, learners explore linear patterns, write a pattern in symbolic form, and solve linear equations using algebra tiles, symbolic manipulation, and a graphing calculator. The lesson...

    1 cent - $1 per group Ages 14 - 18 45 to 60 minutes
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    PBS
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    In this two-part math lesson, learners investigate problems that foster algebraic thinking across content strands. In the first part, learners explore even and odd numbers linked to quilts....

    1 cent - $1 per group Ages 8 - 11 1 to 2 hours
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    WNET
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    In this great hands-on activity, learners use patterns to make a teepee from newspaper that they sit inside. The activity is part of Cyberchase's Builders' Math, and was developed to...

    $1 - $5 per group Ages 8 - 11 45 to 60 minutes
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    IEEE
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    In this activity, learners explore the concept of rotational equilibrium. Learners work in teams to estimate and determine the force within a mobile design. Learners solve algebraic equations,...

    $5 - $10 per group Ages 14 - 18 1 to 2 hours

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