• 한국수학교육학회지시리즈A:수학교육
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• 제41권1호
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• pp.35-44
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• 2002

The purpose of this study is to estimate teachers'conceptions of mathematics through the conception on compositions of mathematical knowledge, the conception on structure of mathematical knowledge, the conception on status of mathematical knowledge, the conception on mathematical activity, and the conception of mathematics learning. This study reached the following conclusions: Most of teachers has more internal viewpoint than external viewpoint on the compositions, structures and status of mathematical knowledge, mathematical activity and mathematics learning.

• 한국수학교육학회지시리즈A:수학교육
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• 제50권2호
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• pp.165-184
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• 2011

The purpose of this study is to detect the possibility of the development of conception of a graph and the formula with the absolute value through context questions, and also to investigate the effectiveness of the each step of the mathematical modeling activities in helping students to have the conception. The research was conducted to analyze the process of development of the mathematical conception by applying the mathematical modeling activities two times to subjects of two academic high school students in the first grade. The results of the study are as follows: Firstly, the subjects were able to comprehend the geometric conception of the absolute value and to make the graph and the formula with the sign of the absolute value by utilizing the condition of the question. Secondly, the researcher set five steps of the intentional mathematical model in order to arouse the effective mathematical notion and each step performed a role in guiding the subjects through the mathematical thinking process in consecutive order; consequently, it was efficacious in developing the conception.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제12권3호
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• pp.215-233
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• 2008

Deep comprehension of basic mathematical notions and concepts is a basic condition of a successful teaching. Some elements of algebraic thinking belong to the elementary school mathematics. The question "What stays the same and what changes?" link arithmetic problems with algebraic conception of variable. We have studied beliefs and comprehensions of future elementary school mathematics teachers on early algebra. Pre-service teachers from three academic pedagogical colleges deal with mathematical problems from the pre-algebra point of view, with the emphasis on changes and invariants. The idea is that the intensive use of non-formal algebra may help learners to construct a better understanding of fundamental ideas of arithmetic on the strong basis of algebraic thinking. In this article the study concerning arithmetic series is described. Considerable number of pre-service teachers moved from formulas to deep comprehension of the subject. Additionally, there are indications of ability to apply the conception of change and invariance in other mathematical and didactical contexts.

• 한국수학교육학회지시리즈C:초등수학교육
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• 제14권2호
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• pp.147-164
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• 2011

2007 개정 수학과 교육과정에서 학생들의 수학적 의사소통 능력 신장을 부각하였는데, 현재는 모든 학년에서 이 교육과정이 시행되고 있다. 학생들의 수학적 의사소통 능력을 신장하려면 교사가 그 취지를 제대로 이해하여 수업에 적용해야할 것이다. 이러한 측면에서 개정 교육과정에 따라 수학을 가르친 교사들을 중심으로 수학적 의사소통을 고려한 수업에 대한 실태와 인식이 어떠한지 살펴보았다. 그 결과 학생중심 수업과 수학적 의사소통에 대한 올바른 이해가 부족하였고, 다양한 표현 활동이나 토론 활동이 잘 이루어지고 있지 않는 것으로 드러났다. 또한 학급당 학생 수가 많아서 수학적 의사소통이 활발한 수업을 하기 힘들다는 인식이 많았으나 실제 활용 실태에서는 학급당 학생 수에 따른 답변에 큰 차이가 나타나지 않았다. 이러한 결과를 통해, 수학적 의사소통 능력의 신장을 위한 인식의 개선이나 교사의 역할에 대한 시사점을 찾아보았다.

• 한국수학교육학회지시리즈A:수학교육
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• 제51권2호
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• pp.161-171
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• 2012

Generally mathematics is regarded as a subtle subject to grasp their true meaning. And teacher's personal conceptions of mathematics influence greatly on the teaching and learning of mathematics. More over often teachers confess their difficulties in explaining the true nature of mathematics. In this paper, applying the theory of epistemology, we tried to search factors that must be counted important when trying to understand the true nature of mathematics. As results, we identified five characteristics of mathematical knowledge such as logical reasoning, abstractive concept, mathematical representation, systematical structure, and axiomatic validation. Next, we tried to investigate math education major students' conception of mathematics using these items. To proceed this research we asked 51 students from three Universities to answer their opinion on 'What do you think is mathematics?'. Analysing their answers in the light of the above five items, we got the following facts. 1. Only 38% of the students regarded mathematics as one of the five items, which can be considered to reveal students' low concern about the basic nature of mathematics. 2. The status of students' responses to the question were greatly different among the three Universities. This shows that mathematics professors need to lead students to have concern about the true nature of mathematics.

• 대한수학교육학회지:수학교육학연구
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• 제27권4호
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• pp.663-678
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• 2017

수학교육학 연구 중에서 기호학적 연구는 Saussure, Peirce, Frege의 기호학에 근거하고 있음을 알게 된다. 이들 선행연구는 기호학의 관점에서 개념을 다루어 왔지만 기호학의 요소들의 관계와 개념의 형성과 발전 과정은 여전히 많은 부분이 모호하고 베일에 싸여 있다. 본 논문은 기호학의 관점에서 기호학의 한 요소인 표현에 의해서 개념이 어떻게 형성되고 발전하는지를 보이고자 하였으며 이 과정에서 기호학의 세 요소인 표현, 개념, 대상의 관계를 부분적으로 조명하고자 하였다.

• 한국학교수학회논문집
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• 제6권2호
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• pp.117-126
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• 2003

본 논문에서는 실생활문제에서 Skemp의 수학학습이론을 토대로 학생들이 나타내는 분수 개념에 대한 유형을 연구하였다. 4-6학년을 대상으로 학생들의 분수 개념에 대한 개념적 이해도를 조사하기 위해 3개의 문항에 대한 학생들의 반응을 분석하였고, 이를 바탕으로 바람직한 몇 가지 교수-학습 방법을 함께 제안하였다.

• 한국수학교육학회지시리즈E:수학교육논문집
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• 제24권2호
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• pp.345-363
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• 2010

본 연구는 비례 개념을 배우지 않은 초등학생들이 가지고 있는 비형식적 지식을 조사 분석하여, 비례 개념 지도에 대한 시사점을 얻는데 목적이 있다. 이 연구를 위해 정비례, 반비례에 관한 선행학습을 하지 않은 6학년 학생 117명을 연구대상으로 본 연구에서 개발한 정비례 7문항, 반비례 4문항을 이용하여 조사 연구를 시행하였다. 또 학생들이 문제를 해결하는 과정에서 보인 비례에 관한 비형식적 지식을 심층적으로 알아보기 위하여 문제해결 전략별로 9명의 학생들을 선정한 후 면담을 시행하였다. 연구 결과, 학교에서 정비례, 반비례 개념을 배우지 않은 6학년 학생들은 정비례 문제와 반비례 문제를 해결할 때 곱셈추론전략, 비례추론 전략, 한 단위 전략 등을 사용하여 해결하였다. 학생들이 비례에 관한 비형식적 지식을 적극 활용한다는 사실은 이를 형식화하여 의미 있는 비례 개념 지도가 가능하다는 것을 시사한다.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제9권1호
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• pp.25-45
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• 2005

Background Phenomenography suggests that more variation is associated with wider ways of experiencing phenomena. In the discipline of mathematics, broadening the 'lived space' of mathematics learning might enhance students' ability to solve mathematics problems Aims The aim of the present study is to: 1. enhance secondary school students' capabilities for dealing with mathematical problems; and 2. examine if students' conception of mathematics can thereby be broadened. Sample 410 Secondary 1 students from ten schools participated in the study and the reference group consisted of 275 Secondary 1 students. Methods The students were provided with non-routine problems in their normal mathematics classes for one academic year. Their attitudes toward mathematics, their conceptions of mathematics, and their problem-solving performance were measured both at the beginning and at the end of the year. Results and conclusions Hierarchical regression analyses revealed that the problem-solving performance of students receiving non-routine problems improved more than that of other students, but the effect depended on the level of use of the non-routine problems and the academic standards of the students. Thus, use of non-routine mathematical problems that appropriately fits students' ability levels can induce changes in their lived space of mathematics learning and broaden their conceptions of mathematics and of mathematics learning.

• 한국수학교육학회지시리즈A:수학교육
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• 제50권4호
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• pp.429-440
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• 2011

This paper analysed gifted middle students' conception of the definitions of point and line and the uses of definitions in proving. The findings of this paper suggest that the concept of mathematical definitions is very unnatural to students, therefore teachers and textbooks need to explain explicitly the characteristics of mathematical definitions which are different from dictionary definitions using common sense. Also introducing undefined terms in middle school geometry would give students a critical chance to deal with the transition from dictionary definitions to mathematical definitions.