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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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    In this math lesson, learners explore the relationship between the thickness of a spaghetti bridge, the length of the bridge, and the amount of weight that can be supported by the bridge. Learners...

    $5 - $10 per group Ages 14 - 18 45 to 60 minutes
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    In this "Sid the Science Kid" activity, learners make applesauce to explore irreversible change. Learners compare and contrast apples that have been changed by heat with apples that haven...

    $5 - $10 per group Ages 4 - 6 10 to 30 minutes
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    In this math lesson, learners apply the concepts of ratio and proportion to the capture-recapture statistical procedure. Learners are given containers (the bay) and an unknown number of fish-shaped...

    $5 - $10 per group Ages 11 - 14 45 to 60 minutes
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    In this math lesson, learners use slices of bread and geoboards to explore several ways to divide a rectangle in half. Learners also identify equivalent fractions that represent one-half.

    $5 - $10 per group Ages 6 - 11 1 to 2 hours

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