Case Study on Change in the Geometrical Thinking Levels of the Under Achievers by Using Mathematical Journal Writing

수학저널 쓰기를 활용한 수학학습 부진학생의 기하학적 사고 수준 변화 사례 연구

This study investigated the development of geometrical thinking levels of the under achievers at mathematics through supplementary classes according to van Hiele's learning process by stages using mathematical journal writing. We selected five under achievers at mathematics among the fourth graders. We examined their geometrical thinking levels in advance and interviewed them to collect basic data related to their family backgrounds and their attitude toward mathematics and their characteristics. Supplementary classes for the under achievers were conducted a couple of times a week during 12 weeks. Each class was conducted through five learning stages of van Hiele and journal writing was applied to the last consolidating stage. After 12th class had been finished, posttest on geometrical thinking levels was conducted and the journals written by the pupils were analyzed to find out changes in their geometrical thinking levels. The result is that three out of five under achievers showed one or two level-up in their geometrical thinking levels, though the other two pupils remained at the same level as the results by the pretest. Moreover we found that mathematical journal writing could provide the pupils with opportunities to restructure the content which they study through their class.

본 연구에서는 초등학교 4학년 수학학습 부진학생을 대상으로 도형영역에 대해 수학저널 쓰기를 활용한 보충학습을 실시하여 수학 부진학생의 기하학적 사고 수준에 어떤 변화가 있는지 알아보았다. 연구 대상의 사전 기하학적 사고 수준 검사 결과에 기초하여 지도 내용을 van Hiele의 5단계 학습과정에 따라 재구성하여 주 1회 이상 12주간의 보충수업 후, 사후 기하학적 사고 수준 검사 결과 및 학생들이 작성한 수학저널과 수업 중 나타난 반응 및 면담 내용을 분석함으로써 부진학생들 외 기하학적 사고 수준 변화에 주목하였다. 더불어 의사표현력이나 협동활동과 같이 수학학습 부진학생의 교수-학습과 관련한 교수학적 함의를 얻을 수 있었다.