• Title/Summary/Keyword: angular momentum rotation

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Conceptions of Secondary School Science Teachers on Some Concepts of Atmosphere and Ocean (대기와 해양의 몇 개념들에 대한 중·고등학교 과학교사의 개념)

  • Kook, Dong-Sik
    • Journal of the Korean earth science society
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    • v.25 no.6
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    • pp.402-408
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    • 2004
  • The purpose of this study is to investigate various conceptions of secondary school earth science teachers on some concepts in secondary school earth science courses; wind in cyclone, western intensification of ocean current, westerly wave, greenhouse effect, ozone layer and atmospheric pressure. The subject is 26 in-service teachers of earth science teachers. The results were analyzed on the view of teaching sources for earth science teachers. The results show that earth science teachers have also various misconceptions on some concepts selected in this study. A number of partial understandings were found that were not enough to apply to teaching concepts. Those misconceptions were related to gradient wind on wind in cyclone and frictional force, related to earth rotation on western intensification of ocean current, related to angular momentum conservation and related to the roles of westerly wave. And misconceptions on greenhouse effect are related to main role of greenhouse effect gases, related to sources of ozone gas and phenomenons by atmospheric pressure. The various understanding types found in this study could be apply to teach the selected concepts in secondary school earth science course.