• 한국수학교육학회지시리즈E:수학교육논문집
• /
• 제24권2호
• /
• pp.365-384
• /
• 2010

본 연구는 교육대학 학생들의 초등수학 개념 이해 정도를 조사 분석한 연구로서 두 가지 문제에 관심을 두었다. 첫째, 교육대학 학생들은 등호 기호와 변수에 대하여 어떻게 이해하고 있는가?, 둘째, 초등수학에서 다루는 수학 개념을 얼마 정확하게 이해하고 있는가? 이 연구는 J 대학교 교육대학 학생들을 대상으로 수행되었으며, 앞으로 교육대학에서의 초등수학교육 개선에 활용되어지기를 희망한다.

• 한국수학교육학회지시리즈A:수학교육
• /
• 제46권4호
• /
• pp.423-443
• /
• 2007

Based on the framework of Huffered-Ackles, Fuson and Sherin(2004), data were analyzed in terms of 3 components: explaining(E), questioning(Q) and justifying(J) of students' mathematical concepts and problem solving in a math classroom. The students used varied presentations to explain and justify their mathematical concepts and ideas. They corrected their mathematical errors or misconceptions through discourses. In addition, they constructed and clarified their concepts and thinking while they were interacted. We were able to recognize there was a special feature in discourses that encouraged the students to construct and develop their mathematical concepts. As they participated in math class and received feedback on their learning, the whole class worked cooperatively in a positive way. Their discourse was improved from the level of the actual development to the level of the potential development and the pattern of interaction moved from ERE(Elicitaion-Response-Elaboration to PD(Proposition Discussion).

• 한국수학교육학회지시리즈A:수학교육
• /
• 제53권1호
• /
• pp.57-73
• /
• 2014

This study investigated the connections of mathematical thinking of students at the second, fourth, and sixth grades with regard to multiplication, fraction, and proportion, all of which have multiplicative structures. A paper-and-pencil test and subsequent interviews were conducted. The results showed that mathematical thinking including vertical thinking and relational thinking was commonly involved in multiplication, fraction, and proportion. On one hand, the insufficient understanding of preceding concepts had negative impact on learning subsequent concepts. On the other hand, learning the succeeding concepts helped students solve the problems related to the preceding concepts. By analyzing the connections between the preceding concepts and the succeeding concepts, this study provides instructional implications of teaching multiplication, fraction, and proportion.

• 한국수학교육학회지시리즈E:수학교육논문집
• /
• 제21권3호
• /
• pp.499-514
• /
• 2007

현대수학교육에서는, 수학적 개념에 대한 이해를 바탕으로 한 수학적 능력의 개발이 교육과정과 교수 방법의 영역 등에서 강조되고 있다. 또한, 학교 현장에서도, 대부분의 교사들이 수학을 잘 하기 위해서는 수학적 개념이 중요하다는 점을 강조하고 있다. 따라서, 이 논문에서는, 문헌 연구를 통하여 수학적 개념의 발달과정을 개괄하였다. 그런 다음, 수학적 개념을 조작적 접근과 구조적 접근으로 정의한 Sfard의 관점에 근거하여, 세 고등학교 수학교과서의 지수함수와 로그함수 단원의 수학적 개념을 분석하였다. 분석의 결과, 교과서 필자들은 동일한 수학적 개념에 대해서도 다른 접근 방법을 사용하고 있다는 사실과 학생들의 수학적 개념의 발달을 돕기 위하여 두 접근 방법을 모두 사용하고 있다는 사실을 발견할 수 있었다.

• 대한수학교육학회지:수학교육학연구
• /
• 제12권2호
• /
• pp.213-228
• /
• 2002

We know that curriculum is, first of all, related to teaching materials, namely, contents. Therefore, when we think of mathematics curriculum, we must take account of characteristic of mathematics. Vygotsky has studied the development of scientific concepts and everyday concepts. According to Vygotsky, scientific concepts grow down through spontaneous concepts; spontaneous concepts grow upward through scientific concepts. And mathematics is a representative of subjects dealing with scientific or theoretical concept. Therefore, his study provides scientific basis for mathematics curriculum design. In this context, Davydov notes that everyday concepts are developed through empirical abstraction, while scientific concepts require a theoretical abstraction. And Davydov constructed the curriculum materials for the teaching of number concept. Davydov's curriculum is an example of reflecting Vygotsky' theoretical view and his view about the types of abstraction. In particular, it represents mathematical characteristic of a 'science' by introducing number concept through quantitative relationship and use of signs. In conclusion, stance mathematical concepts have scientific characteristic, mathematics curriculum reflects this characteristic.

• 한국수학교육학회지시리즈D:수학교육연구
• /
• 제13권2호
• /
• pp.123-139
• /
• 2009

In this paper some attempts have been made (a) to identify all the elementary concepts of the major concept "measurement of length" and, (b) to find the sequential order of these elementary concepts. Total 714 elementary concepts have been identified and sequenced.

• 대한수학회논문집
• /
• 제11권3호
• /
• pp.831-839
• /
• 1996

In the last years there has been growing interest in concepts of positive (negative) dependence of stochastic processes such that concepts are considerable us in deriving inequalities in probability and statistics. Lehmann [7] introduced various concepts of positive(negative) dependence in the bivariate case. Stronger notions of bivariate positive(negative) dependence were later developed by Esary and Proschan [6]. Ahmed et al.[2], and Ebrahimi and Ghosh[5] obtained multivariate versions of various positive(negative) dependence as described by Lehmann[7] and Esary and Proschan[6]. Concepts of positive(negative) dependence for random variables have subsequently been extended to stochastic processes in different directions by many authors.

• 호남수학학술지
• /
• 제44권4호
• /
• pp.560-571
• /
• 2022

In this paper, firstly we introduce the concepts of deferred Cesàro summable and deferred statistically convergent function, and secondly we introduce the concepts of deferred almost summable and deferred almost statistically convergent functions. Furthermore, we investigate the relations between these concepts.

• International Journal of Computer Science & Network Security
• /
• 제22권5호
• /
• pp.149-153
• /
• 2022

This study examines the effect of using interactive electronic models to teach mathematical concepts on students' achievement in the linear algebra course at university. The field sample consisted of 200 students divided into two equal groups, an experimental group of 100 students and a control group of 100 students. The researcher used an achievement test in some mathematical concepts related to linear algebra. The results of the study showed that there were statistically significant differences (0.05) between the average achievement scores of the experimental and control groups in the post application of the achievement test, in favor of the experimental group. The size of the influence of the independent factor on the results of the study, which is "interactive electronic forms", on the dependent factor, which is the students' academic achievement in the prepared test, had a very large effect. Also, the results of the study showed that there were statistically significant differences (0.05) between the mean scores of the experimental group in the pre and post applications of the achievement test, in favor of the post application. The researcher recommended the use of interactive electronic models in teaching mathematical concepts at the university level and diversifying the strategies of teaching mathematics, using technology to attract learners and raise their academic achievement.

• 대한수학교육학회지:학교수학
• /
• 제6권4호
• /
• pp.325-344
• /
• 2004

본 연구에서는 개념의 조직화, 사고의 창의가 가능한 마인드맵 노트활동이 수학 학습에 미치는 영향을 알아보기 위해서 마인드맵 노트활동을 적용한 수업방식과 기존의 교사주도식 수업방식에서의 수학개념구조 형성과 수학적 창의력에 대한 효과를 분석하였다. 중학교 3학년 학생을 대상으로 약 3개월 동안 31차시의 마인드맵 노트활동을 적용하여 수업을 한 후, 수학개념구조 검사지와 수학적 창의력 검사지, 그리고 면담자료로 평가한 결과는 다음과 같다. 첫째, 마인드맵을 활용한 수업방식이 기존의 교사주도식 수업방식에 비해 학습자의 개념구조형성 신장에 효과가 있는 것으로 나타났다. 둘째, 마인드맵을 활용한 수업이 기존의 교사주도식 수업에 비해 학습자의 수학적 창의력 신장에 효과가 있는 것으로 나타났고, 특히 수학적 창의력의 하위 요소 중 유창성과 응통성 신장에 효과가 있었다. 따라서 수학 개념구조 형성과 수학적 창의력 신장을 위해서 학교수업에서 마인드맵 노트활동의 도입을 제언한다.