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    PBS
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    In this math lesson, learners record and graph plant growth and interpret data. Learners plant seeds, and once the seeds sprout, record the change in height of the plants for several days. They...

    $5 - $10 per group Ages 8 - 11 1 to 4 weeks
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    PBS
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    In this math lesson, learners make estimates to analyze the number of apples per acre, and visualize the magnitude of one million. Using the thematic setting of Johnny Appleseed, learners practice...

    Over $20 per group Ages 8 - 11 1 to 2 hours
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    University of Washington
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    In this activity, learners investigate color vision as well as plan and conduct their own experiments. In "CLASS EXPERIMENT," learners discover that afterimages occur because of...

    $5 - $10 per group Ages 8 - 18 1 to 2 hours
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    PBS
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    In this math lesson, learners are introduced to proportional reasoning through modeling, sharing, and questioning techniques. After reading "Oliver's Fruit Salad," learners work...

    $5 - $10 per group Ages 8 - 11 1 to 2 hours
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    Computer Science Unplugged
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    This activity introduces the idea of "divide and conquer" using a fictitious but serious problem--a pair of dirty socks has accidentally been wrapped in one of the presents that Santa is...

    free Ages 8 - 18 30 to 45 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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    PBS
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    In this math lesson (on Page 13), learners predict and simulate the likelihood of an event occurring. Using an inflatable globe of the earth, learners simulate where a UFO would impact with the...

    $1 - $5 per group Ages 8 - 11 45 to 60 minutes
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    Utah Education Network
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    In this math lesson, learners play two different games to help them understand coordinates. First, learners read the book, "The Fly on the Ceiling," by Julie Glass. Then, learners play ...

    1 cent - $1 per group Ages 8 - 11 30 to 45 minutes
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    Children's Museum of Indianapolis
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    In this activity, learners participate in a simulated dig to discover fossilized dinosaur bones. Learners take notes, make a map and propose theories about dinosaurs. This can be used as a...

    Over $20 per group Ages 8 - 11 1 to 2 hours
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    The Maryland Zoo in Baltimore
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    Use the Zoo Calendar (page 1 of PDF) to involve learners in interdisciplinary, whole language, and writing activities about ecological concepts. Each 30-45 minute activity emphasizes the concept of...

    $5 - $10 per group Ages 6 - 11 1 to 4 weeks

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