초등학생들의 비구조화된 문제 해결 과정에서 나타나는 공간 추론 능력과 문제 해결 능력
An analysis of spatial reasoning ability and problem solving ability of elementary school students while solving ill-structured problems
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초록
본 연구에서는 학생들의 생활과 밀접한 공간을 기반으로 한 비구조화된 문제를 개발하고 수업에 적용하였다. 이 과정에서 6학년 학생들의 공간 추론 능력으로는 외적 추론에 비해 내적 추론에서 어려움을 표했으며, 공간 추론이 수와연산, 측정 등의 영역과 연계되어 활용될 때 그 수준이 더 높게 나타났다. 문제 해결 능력에서는 반성 요소가 미흡하게 나타났으며 초등 현장에서 온라인 환경에서의 협력과 수학적 모델링 학습이 적용 가능하다는 결과를 얻었다. 이를통해 수학 교육 현장에 공간 학습과 실생활 문제 해결에 관한 의미 있는 시사점을 도출할 것으로 기대된다.
Abstract
Ill-structured problems have drawn attention in that they can enhance problem-solving skills, which are essential in future societies. The purpose of this study is to analyze and evaluate students' spatial reasoning(Intrinsic-Static, Intrinsic-Dynamic, Extrinsic-Static, and Extrinsic-Dynamic reasoning) and problem solving abilities(understanding problems and exploring strategies, executing plans and reflecting, collaborative problem-solving, mathematical modeling) that appear in ill-structured problem-solving. To solve the research questions, two ill-structured problems based on the geometry domain were created and 11 lessons were given. The results are as follows. First, spatial reasoning ability of sixth-graders was mainly distributed at the mid-upper level. Students solved the extrinsic reasoning activities more easily than the intrinsic reasoning activities. Also, more analytical and higher level of spatial reasoning are shown when students applied functions of other mathematical domains, such as computation and measurement. This shows that geometric learning with high connectivity is valuable. Second, the ‘problem-solving ability' was mainly distributed at the median level. A number of errors were found in the strategy exploration and the reflection processes. Also, students exchanged there opinion well, but the decision making was not. There were differences in participation and quality of interaction depending on the face-to-face and web-based environment. Furthermore, mathematical modeling element was generally performed successfully.
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