기하 증명 구성에 나타나는 학생들의 사고과정 탐색

초록

This study aims to explore secondary students’ thinking while doing proof in geometry. Two secondarystudents were interviewed and the interview data were analyzed. The results of the analysis suggest that thetwo students similarly showed as follows: a) tendencies to use the rules of congruent and similar triangles tosolve a given problem, b) being confused about the rules of similar and congruent triangles, and c) beingconfused about the definitions, partition and hierarchical classification of quadrilaterals. Also, the resultsrevealed that a relatively low achieving student has tendency to rely on intuitive information such as visualrepresentations.

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