Literaturnachweis - Detailanzeige
| Autor/in | Gates, Joshua |
|---|---|
| Titel | A Teachable Moment Uncovered by Video Analysis |
| Quelle | In: Physics Teacher, 49 (2011) 5, S.284-285 (2 Seiten)Infoseite zur Zeitschrift
PDF als Volltext |
| Sprache | englisch |
| Dokumenttyp | gedruckt; online; Zeitschriftenaufsatz |
| ISSN | 0031-921X |
| DOI | 10.1119/1.3578421 |
| Schlagwörter | Video Technology; Motion; Error Patterns; Models; Prediction; Scientific Principles; Physics; Science Instruction; Teaching Methods |
| Abstract | Early in their study of one-dimensional kinematics, my students build an algebraic model that describes the effects of a rolling ball's (perpendicular) collision with a wall. The goal is for the model to predict the ball's velocity when it returns to a fixed point approximately 50-100 cm from the wall as a function of its velocity as it passes this point initially. They are told to assume that the ball's velocity does not change while it rolls to or from the wall--that the velocity change all happens very quickly and only at the wall. In order to evaluate this assumption following the data collection, I have the students analyze one such collision using video analysis. The results uncover an excellent teachable moment about assumptions and their impact on models and error analysis. (As Provided). |
| Anmerkungen | American Association of Physics Teachers. One Physics Ellipse, College Park, MD 20740. Tel: 301-209-3300; Fax: 301-209-0845; e-mail: pubs@aapt.org; Web site: http://scitation.aip.org/tpt |
| Erfasst von | ERIC (Education Resources Information Center), Washington, DC |
| Update | 2017/4/10 |
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