Teacher resources and professional development across the curriculum

Teacher professional development and classroom resources across the curriculum

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Science in Focus: Force and Motion
About the Workshops
1. Making an Impact
2. Drag
Races
3. When Rubber
Meets the Road
5. Keep on
Rolling
6. Force Against Force
7. The Lure of
Magnetism
MouseLab
Questionnaire
Supplemental
Resource List




Channel-Talk

To post a question or reply, you can send an email to channel-talkforce@learner.org.

From: Clive Grainger (cgrainger@cfa.harvard.edu)
Date: Mon Jul 01 2002 - 11:08:43 EDT

  • Next message: RDCush@aol.com: "Classroom time/control"

    >A particpant who teaches 9th grade science has questioned the
    >correct answers to the pretest for item numbers: 2, 8, and 9.
    >
    >He says item # 2.'s answer should be d. - that none of the above are correct;
    ># 8.'s answer should be a. - that the windshield exerts a greater
    >force on the bug than the bug exerts on the windshield, and that #
    >9.'s answer should be that the small car exerts a greater force on
    >the truck than the truck exerts on the car.
    >
    >Please explain the correct answer choices.
    >
    >Thanks, Mary Tweedy

    Dear Mary:

    Many thanks for your query. The reason that the series was produced
    was to help further our audience's understanding of this most
    difficult topic area. The answers, as they stand, are correct.

    The answers to most of these pre-test questions are explored directly
    in the video, print or web materials so I hope that by the time you
    and your fellow workshop participants have completed the series that
    you have gained a broader confidence in this topic.

    How did you do on the post-workshop questionnaire?

    Kind regards:

    Clive
    _____________________________________________
    Clive A. Grainger

    Producer
    Science in Focus: Force & Motion

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