한국수학교육학회지시리즈A:수학교육 (The Mathematical Education)

  • 제56권1호
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  • Pages.81-100
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  • 2017
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  • 1225-1380(pISSN)
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  • 2287-9633(eISSN)
한국수학교육학회 (Korean Society of Mathematical Education)
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초등학교 수학 교과서 및 익힘책에 제시된 변수 개념에 관한 분석

An Analysis of Variable Concept in the Elementary Mathematics Textbooks and Workbooks

  • Pang, JeongSuk (Department of Elementary Education, Korea National University of Education) ;
  • Cho, Sunmi (Graudate School of Korea National University of Education) ;
  • Kim, JeongWon (Sintanjin Elementary School)
  • 투고 : 2017.01.23
  • 심사 : 2017.02.24
  • 발행 : 2017.02.28
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초록

The concept of variable is a big idea to develop algebraic thinking. Variable has multiple meanings such as the unknown, a tool for generalization, and the relationship between varying quantities. In this study we analyzed in what ways the meanings of variable were presented in the current elementary mathematics textbooks and workbooks. The results showed that the most frequent meaning of variable was 'the unknown', 'a tool for generalization', and 'the relationship between varying quantities' in order. A close look at the results revealed that the same symbol was often used in representing different values of variable as the unknown. In taking variable as a tool for generalization, questions to provoke generalization were sometimes included not in the textbooks but in the teachers' manuals. The main focus in dealing with variable as the relationship between varying quantities was on finding out the dependent values compared to the independent ones. Building on these results, this study is expected to suggest implications for how to deal with variable concept in elementary mathematics instructional materials.

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참고문헌

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