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    PBS
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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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    Twin Cities Public Television
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    In this activity, learners compare ways to measure their heart rates. Learners build their own stethoscopes and learn how exercise affects heart rate.

    $5 - $10 per group Ages 8 - 14 1 to 2 hours
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    Twin Cities Public Television
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    This activity (on page 3 of the PDF under GPS: Baseball Activity) is a full inquiry investigation into how "bounciness" relates to the distance a ball will fly when hit off a batting tee....

    $5 - $10 per group Ages 8 - 14 1 to 2 hours

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