학생의 수직선을 이용한 분수 문제 해결 전략에 대한 예비 초등교사들의 이해 분석
An analysis of understanding of prospective elementary teachers on students’ strategies for fraction tasks with number lines
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교사가 학생의 문제 해결 전략을 이해하고 이에 적절한 피드백을 제공하는 것은 중요하다. 본 연구는 64명의 예비 초등교사들을 대상으로 수직선을이용한 분수 문제에 대한 초등학생들의 해결 전략을 제시하고 이를 통해 알 수 있는 학생들의 이해와 지도 방안을 서술하게 하는 검사를 실시하고분석하였다. 본 연구를 통한 결과는 다음과 같다. 첫째, 예비교사들은 초등학생들의 해결 전략을 통하여 아는 것과 모르는 것을 다양한 수준에서설명할 수 있었다. 둘째, 예비교사들은 학생들의 해결 전략에서 드러난 오류를 교정하기 위한 지도 방안으로 측정으로서의 분수 개념을 강조하는다양한 수직선 과제 및 활동을 제시하거나 영역모델만을 활용하는 모습을 확인할 수 있었다. 이와 같은 연구 결과를 고려하여, 예비교사들이학생들의 문제 해결 전략을 분석하고 학생들의 수학적 사고를 이해할 수 있는 기회와 다양한 분수 모델을 수업에 활용할 수 있는 지도 방안에 대해논의할 수 있는 기회를 가질 수 있도록 예비교사교육에서 고려할 필요가 있다.
Abstract
With the importance for teachers of understanding students’ strategies and providing appropriate feedback to their students, the purpose of this study is to analyze how prospective elementary teachers interpret and respond students’ strategies for fraction tasks with number lines. The findings from analysis of 64 prospective teachers’ responses were as follow. First, the prospective teachers in general could identify the students’ understanding and errors based on their strategies, however, some prospective teachers overgeneralized students’ mathematical thinking at a superficial level. Second, the prospective teachers could pose diverse tasks or activities for revising the students’ errors, while some prospective teachers tried to correct students’ errors by using only the area models. Based on these results, this study suggests for prospective teachers to have opportunities to understand elementary students’ diverse problem strategies and to consider teaching methods with different fraction models.
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