Communications of Mathematical Education (한국수학교육학회지시리즈E:수학교육논문집)

Korean Society of Mathematical Education (한국수학교육학회)
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An Analysis of Sixth Graders' Understanding on Double Scale Model: Focusing on Fraction Division

이중 척도 모델에 대한 초등학교 6학년 학생들의 이해 분석: 분수의 나눗셈을 중심으로

  • Received : 2023.05.08
  • Accepted : 2023.06.21
  • Published : 2023.06.30
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Abstract

Double scale models have been introduced in elementary mathematics textbooks under the 2015 revised mathematics curriculum. However, few studies have examined in detail how students understand or utilize such models. In this study, we analyzed how 154 sixth-grade students who had learned the division of fractions from textbooks containing double scale models understood such models. The results showed that the students tended to identify the components of the model relatively well, but had difficulties exploring the unit or the meaning of the bottom number line of a model. They also had a lot of difficulties using the double scale model to complete the computation process and explain the computation principle. Based on these findings, we discuss the implications of teaching double scale models.

2015 개정 교육과정에 따른 초등학교 수학 교과서에 이중 척도 모델이 본격적으로 도입되었지만, 학생들이 이중 척도 모델을 어떻게 이해하거나 활용하고 있는지 자세히 조사한 연구는 드물다. 이에 본 연구에서는 이중 척도 모델이 포함된 교과서로 분수의 나눗셈을 학습한 6학년 학생 154명을 대상으로 교과서에 제시된 형태의 이중 척도 모델을 어떻게 이해하고 있는지 분석하였다. 그 결과 학생들은 모델의 구성 요소는 비교적 잘 탐색하는 경향이 있었으나 예외적으로 아래에 놓인 수직선의 단위나 의미를 탐색하는 데는 어려움을 드러냈다. 또한 이중 척도 모델을 활용해 계산 과정을 완성하고 계산 원리를 설명하는 데에는 많은 어려움이 있었다. 이러한 연구 결과를 바탕으로 이중 척도 모델을 활용한 지도에 관한 시사점을 제시하였다.

Keywords

References

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