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    In this activity, learners investigate how geometry plays a role in perspective. The lesson begins with a demonstration, in which learners of the same height stand side by side near the end of a...

    1 cent - $1 per group Ages 8 - 18 45 to 60 minutes
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    In this design challenge activity, learners build a four-stringed instrument that can play a tune. This lesson plan includes information on sound energy and pitch and the design process, as well as...

    $1 - $5 per student Ages 8 - 14 45 to 60 minutes
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    In this invention challenge activity, learners create an indoor game for one or two people that gets you moving. This lesson guide includes instructions on how to play an “imagine new uses for old...

    $10 - $20 per group Ages 8 - 14 30 to 45 minutes
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    In this design challenge activity, learners add a jet-propulsion system (i.e. a balloon) to a blimp so it flies straight and far under its own power. This lesson guide includes links to video clips...

    $5 - $10 per group Ages 8 - 14 45 to 60 minutes
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    In this design challenge activity, learners make a balloon hover at eye level for five seconds, and then make it move by creating air currents. The activity guide contains information for Educators...

    $1 - $5 per student Ages 8 - 14 45 to 60 minutes
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    In this design challenge activity, learners investigate series circuits and motors to build a hand-held "kick stick." Their goal is create a battery-operated device that sends a Ping-Pong...

    $5 - $10 per student Ages 8 - 14 45 to 60 minutes
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    In this design challenge activity, learners use two helium-filled balloons to build a blimp that can travel in a straight path across the room. The activity guide contains information for Educators...

    $1 - $5 per group Ages 8 - 14 45 to 60 minutes
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    In this activity, learners create a xylophone by filling glasses with different amounts of water and tapping them with a metal spoon. This classic instrument is embedded in a training course for...

    $1 - $5 per student Ages 8 - 11 10 to 30 minutes
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    In this design challenge activity, learners add headphones to a previously built instrument (see "Build a Band" activity) to make it easier to hear. This lesson plan includes information...

    $5 - $10 per student Ages 8 - 14 45 to 60 minutes
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    In this design challenge activity, learners invent a pinball-like game where a kick stick hits a ping pong ball into a target that buzzes. This detailed guide includes step-by-step instructions on...

    $10 - $20 per student Ages 8 - 14 45 to 60 minutes

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