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World Record Balloon Dog

by Dan Meyer


Act One

  • Dan Meyer

    Dan Meyer

    March 10, 2017

    How long will it take the dog to pop all of the balloons?

  • 1.

    What's a number of seconds that's too low?

  • 2.

    What's a number of seconds that's too high?

  • Teacher note
    A version of this activity exists on Desmos: https://teacher.desmos.com/activitybuilder/custom/58b9f287165d050cb57bc5e3

Act Two

  • ImageTime for 25 balloons
  • LinkThe previous world record.
  • 3.

    Given this information, how long will it take Twinkie to pop all 100 balloons?

  • 4.

    Will she beat the old world record?

  • Teacher note
    Before students finalize their answers, ask them to consider why their mathematical answers may not match the answer in the world. If they're going to adjust their answer, should they adjust it down or up? Once they have their final answer, show them the answer.

Act Three


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