지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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Trigonometric ratios are difficult concepts to teach and learn in middle school. One of the reasons is that the mathematical terms (sine, cosine, tangent) don’t convey the idea literally. This paper deals with the understanding of a concept from the learner’s standpoint, and searches the orientation of teaching that make students to have full understanding of trigonometric ratios. Such full understanding contains at least five constructs as follows: skill-algorithm, property-proof, use-application, representation-metaphor, history-culture understanding [Usiskin, Z. (2012). What does it mean to understand some mathematics? In: Proceedings of ICME12, COEX, Seoul Korea; July 8–15,2012 (pp. 502–521). Seoul, Korea: ICME-12]. Despite multi-aspects of understanding, especially, the history-culture aspect is not yet a part of the mathematics class on the trigonometric ratios. In this respect this study investigated the effect of history approach on students’ understanding when the history approach focused on the mathematical terms is used to teach the concept of trigonometric ratios in Grade 9 mathematics class. As results, the experimental group obtained help in more full understanding on the trigonometric ratios through such teaching than the control group. This implies that the historical derivation of mathematical terms as well as the context of mathematical concepts should be dealt in the math class for the more full understanding of some mathematical concepts.
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참고문헌 (23)
참고문헌 신청
Cavanagh, M. / 2008 / Trigonometry from a different angle / Aust. Math. Teach 64 (1) : 25 ~ 30
Choi, J. Y. / 2011 / A study on students’ understanding of concepts through mathematical terms / 석사 / Seoul National University
Conzales Astudillo, M. T / 2012 / Growth in the understanding of the concept of infinite numerical series: A glance through Pirie and Kieren Theory / Proceedings of ICME12 : 2660 ~
Crossfield, D. / / Trigonometry. Historical Modules Project (Funded by the National Science Foundation)
Freudenthal, H. / 1978 / Weeding and sowing: preface to a science of mathematics education / Reidel : 233 ~ 242
Choi, J. Y. / 2011 / A study on students’ understanding of concepts through mathematical terms / 석사 / Seoul National University
Conzales Astudillo, M. T / 2012 / Growth in the understanding of the concept of infinite numerical series: A glance through Pirie and Kieren Theory / Proceedings of ICME12 : 2660 ~
Crossfield, D. / / Trigonometry. Historical Modules Project (Funded by the National Science Foundation)
Freudenthal, H. / 1978 / Weeding and sowing: preface to a science of mathematics education / Reidel : 233 ~ 242
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