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김용태,신봉숙 한국수학교육학회 2003 初等 數學敎育 Vol.7 No.1
In late 19C, German mathematician Felix Klein declaired "Erlangen program" to reform mathematics education in Germany. The main ideas of "Erlangen program" contain the importance of instructing the concepts of functions and groups in school mathematics. After one century from that time, the importance of concepts of groups revived by Bourbaki in the sense of the algebraic structure which is the most important structure among three structures of mathematics - algebraic structure, ordered structure and topological structure. Since then, many mathematicians and mathematics educators devoted to work with the concepts of group for school mathematics. This movement landed on Korea in 21C, and now, the concepts of groups appeared in element mathematics text as plane rigid motion. In this paper, we state the rigid motions centered the symmetry - an important notion in group theory, then summarize the results obtained from some classroom activities. After that, we discuss the responses of children to concepts of groups.
한길준,신봉숙,Han, Gil-Jun,Shin, Bong-Sook 한국수학사학회 2007 Journal for history of mathematics Vol.20 No.2
대칭은 수학뿐만 아니라 생활에서 널리 이용되는 개념으로 5-나 단계에서 도형의 대칭을 다루고 있다. 본 연구는 도형의 대칭 지도를 위해 대칭과 대칭지도에 관한 역사적 배경, 수학적 배경, 교육과정에서의 위계를 살펴보고, 아동에게 대칭에서 발생하는 주요 오류와 그 원인을 규명하여 이를 극복하기 위한 아이디어를 얻고자 한다. In this paper, we study the symmetry of figures in elementary geometry. First, we investigate the historical and mathematical background of symmetry of figures and we explore the suitable teaching and learning methods for symmetry in elementary geometry. Also we study the major problem of geometry education that occurring in elementary school.