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A discursive approach to analysis of definition of graph in first year middle school textbooks

담론적 관점(discursive approach)에서 중1 수학 교과서의 그래프 정의 분석

  • Received : 2018.08.13
  • Accepted : 2018.09.20
  • Published : 2018.09.30

Abstract

In order to analyze textbooks from a discursive approach, the purpose of this study is to structuralize an analytic framework based on previous literature review and apply it to analyzing the meanings and their syntheses developed by words and visual mediators appeared in the definition of graph in first-year middle school textbooks. The discursive approach consists of the communicational approach developed by Sfard(2008) and the systemic functional linguistics developed by Halliday(1985/2004). In this study, ideational meta-functions for ideational meanings and interpersonal meta-functions for interpersonal meanings were employed to analyze the meanings produced by words and visual mediators in textbooks, whereas textual meta-functions for textual meanings were used for analyzing the synthesized relationships between words and visual mediators. Results show that first, density in mathematical discourse was very high and subjects in mathematical activities were ambiguous in the ideational meanings of words, and behavior aspect was more emphasized than thinking aspect in the interpersonal meanings of words which request student participations. In the case of ideational meanings of visual mediators, there was a lack of narrative diagrams, whereas there were qualitative differences in the case of offer. Second, there was a need for promoting a wide range of diverse synthetic relationships between words and visual mediators for developing enriched mathematical meanings through the varying uses like specification, explanation, similarity, and complement. These results are so important that they provide a new analytic framework from a discursive approach to textbook analysis because not only words, but also visual mediators are analyzed as tools for producing meanings in mathematics textbooks and their synthetic relationships are also examined.

본 연구의 목적은 담론적 관점에서 수학 교과서를 분석하기 위해 선행 연구를 바탕으로 분석틀을 재구성하고, 중1수학 교과서의 '그래프 정의'에서 단어와 시각적 매개체가 생성하는 의미와 그 통합 관계를 분석하는데 적용하는 것이다. 담론적 관점은 Sfard(2008)의 의사소통학적 관점과 Halliday(1985/2004)의 체계기능언어학을 바탕으로 발전된 사회기호학적 관점이 통합된 것으로 이를 바탕으로 본 연구에서는 단어와 시각적 매개체가 생성하는 의미는 교과서에 구현된 수학을 관념적 메타기능이 실현하는 의미 측면과 학생의 수학적 활동의 참여 유도성을 대인관계적 메타기능이 실현하는 의미 측면으로 구분하여 분석하였고, 단어와 시각적 매개체의 통합 관계는 텍스트적 메타기능 측면에서 분석하였다. 그 결과 첫째, 단어의 관념적 의미는 수학 담론의 밀도가 높았을 뿐 아니라 수학적 활동의 주체가 모호하였고 학생 참여를 요구하는 단어의 대인관계적 의미는 사고보다는 주로 행동 측면이 강조되었다. 시각적 매개체가 구성하는 관념적 의미에서는 내러티브 다이어그램이 결여되었고 대인관계적 의미에서는 정보 제공에 질적 차이가 있었다. 둘째, 단어와 시각적 매개체의 통합 관계는 구체화, 설명, 유사, 보완처럼 다양한 방식을 통한 풍부한 수학 의미 형성을 위해 통합 관계의 다양성을 지향할 필요가 있었다. 이러한 결과는 수학 교과서를 분석하는데 의미를 생성하는 도구로서 단어와 함께 시각적 매개체의 사용을 분석하고 단어와 시각적 매개체의 통합 관계를 분석하였기 때문에 담론적 관점에서 교과서 분석의 새로운 분석틀을 제공한 의미가 있다.

Keywords

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