Journal of the Korean earth science society (한국지구과학회지)

The Korean Earth Science Society (한국지구과학회)
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The Structure and Conceptual Changes of Preservice Secondary Teachers' Alternative Conceptions on Radioactive Isotopes

예비 중등교사들의 방사성 동위원소에 대한 대안개념의 구조와 개념변화

  • Oh, Jun-Young (Center for Gifted Education in Science and Technology, Changwon National University) ;
  • Kim, Sang-Su (Center for Gifted Education in Science and Technology, Changwon National University) ;
  • Kang, Yong-Hee (Science Education Institute for Gifted Youth, Kyungpook National University)
  • 오준영 (창원대학교 과학영재교육원) ;
  • 김상수 (창원대학교 과학영재교육원) ;
  • 강용희 (경북대학교 과학영재교육원)
  • Published : 2007.12.31
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Abstract

This study was aimed to understand the structures of preservice secondary school teachers' alternative conceptions on radioactive isotopes in the interior of earth. The structure of their conceptions were analyzed by the suggestions of Niaz (1988) based on the Lakatosian frameworks. The survey was carried out on a group of seventeen students who were major in science education. The research method was open-ended written questionnaire. The results of this study show that students had apparent alternative conceptions. The high temperature and pressure' explanation for radioactive decay in earth's interior had most import effects on their alternative conceptions. It was also intended to survey their conceptional change by our teaching strategies of the philosophy of science in order to construct science concepts.

본 연구는 예비 중등교사들을 대상으로 지구 내부에서의 방사성 동위원소에 대한 예비 중등교사의 대안개념의 구조를 이해하는 것이다. 그들의 대안개념의 구조를 Lakatos의 방법론을 기준틀로 한 Niaz(1998)의 제안을 사용하여 분석하였다. 이 연구는 사범대학 과학교육과 $3{\sim}4$학년 17명을 대상으로 하였다. 연구 방법으로는 개방형 질문지법(open-ended written questionnaire)을 사용하였다. 연구 결과, 예비 중등교사들은 지구내부에서 방사성 동위원소의 붕괴의 설명은 지층의 높은 열과 압력이 그들의 대안개념에 가장 큰 영향을 주고 있었다. 또한 우리가 제안한 과학개념구성을 위한 과학 철학적 수업전략에 따른 그들의 개념변화를 조사하였다.

Keywords

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