대한수학교육학회지:학교수학 (School Mathematics)
- 제14권4호
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- Pages.565-577
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- 2012
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- 1229-4322(pISSN)
역동적 기하 환경에서 비례를 이용한 이차방정식의 지도
Study on the teaching of quadratic equation through proportions in a dynamic environment
- Lew, Hee Chan (Korea National University of Education) ;
- Yoon, Okyo (Daejeon Tanbang Middle School)
- 투고 : 2012.11.09
- 심사 : 2012.12.14
- 발행 : 2012.12.31
초록
본 연구에서는 중학교 3학년 학생들에게 닮은 삼각형의 대응변 사이에 성립하는 비례적 성질에 기초하여 역동적 기하환경에서 이차방정식
In this study, we investigated the process of constructing the geometrical solutions to quadratic equation, through proportions between lengths of similar triangles in a dynamic environment. To do this, we provided one task to 4 ninth grades students and observed the process of the students' activities and strategies. As a result of this pilot lesson study, our research shows the advantage and possibility of geometrical method in learning and teaching quadratic equation.
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