• 한국수학사학회지
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• 제33권1호
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• pp.21-32
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• 2020

Daniel Coit Gilman, the first president of Johns Hopkins University, aspired to build an ideal university focused on the competent faculty and their research. His plan was carried out through opening the first American graduate program, hiring professors with the highest-level research performances, assigning them less teaching burdens, and encouraging them to actively publish professional journals. He introduced Department of Mathematics as an initial model to put his plan into practice, and James Joseph Sylvester, a British mathematician invited as the first mathematics professor to Johns Hopkins University, made it possible in a short time. Their concerted efforts led to building the Department of Mathematics as a professional research institute for research, higher education, and expert training as well as to publishing American Journal of Mathematics.

• 한국수학교육학회지시리즈A:수학교육
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• 제63권1호
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• pp.35-61
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• 2024

본 연구의 목적은 TIMSS 최근 5주기 동안 우리나라 중학교 2학년 학생들의 수학 정의적 태도 변화 추이를 살펴보는 데 있다. 이를 위해 먼저 우리나라를 포함한 주요 5개국 학생들의 수학 정의적 태도 변화 추이를 전체, 성별, 성취수준별로 분석하고, 이어서 우리나라 학생들의 수학 정의적 태도 문항별 변화 추이를 분석하였다. 연구 결과, TIMSS 최근 5주기 동안 우리나라 중학교 2학년 학생들의 수학에 대한 흥미, 자신감, 가치인식 전반에 걸쳐 긍정적인 변화가 있는 것으로 나타났다. TIMSS 최근 5주기 동안 우리나라 남학생의 수학 정의적 태도가 여학생보다 높고 성별에 따른 차이가 최근 들어 증가하고 있는 것으로 나타났으며, 우리나라 학생들은 성취수준에 따라 수학 정의적 태도의 차이가 크고 하위 성취수준 학생들의 수학 정의적 태도가 특히 낮은 점이 확인되었다. 우리나라 학생들의 수학 가치인식에 대한 문항별 분석에서는 일상생활에서의 수학의 필요성에 대한 인식이 낮아지고 있는 것으로 나타났다. 이러한 연구 결과를 바탕으로 우리나라 학생들의 정의적 태도 함양을 위한 시사점을 제시하였으며, 본 연구의 결과가 우리나라 수학교육의 성과 점검을 위한 기초 자료로서 의미 있게 활용되어 학생들의 수학 정의적 태도 함양을 위한 방안을 마련하는 데 기여할 수 있기를 기대한다.

• Journal of applied mathematics & informatics
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• 제19권1_2호
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• pp.551-572
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• 2005

Recently, there are some empirical Bayes procedures using NA samples. We point out a key equality which may not hold for NA samples. Thus, the results of those empirical Bayes procedures based on NA samples are dubious

• Journal of applied mathematics & informatics
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• 제42권4호
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• pp.801-818
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• 2024

The purpose of this paper is to introduce the concept of (∈, ∈ ∨q)-fuzzy congruence relation over ring and discuss some properties of the (∈, ∈ ∨q)-fuzzy congruence relation. We also establish a brief relation between (∈, ∈ ∨q)-fuzzy ideal and (∈, ∈ ∨q)-fuzzy congruence relation. The image and preimage of (∈, ∈ ∨q)-fuzzy congruence are also studied under the so called semibalanced map.

• 한국수학교육학회지시리즈A:수학교육
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• 제56권1호
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• pp.119-130
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• 2017

The purpose of this study is to explain the long term growth and development of elementary teachers' Professional Learning Communities(PLC) about mathematics implemented on an institutional basis. Especially, it is meaningful to analyze and present the development process and characteristics of PLC, which was started by the basis on the collaboration of a National University of Education and its affiliated elementary school. In this study, PLC activities during three years were analyzed according to the capacities and dimensions of a professional learning community. The developmental capacity of the PLC analyzed in this study can be summarized as follows. In the first year, development of organizational competence in terms of capacity, resources, structure, and system of exchanges was the main factor in personal competence, and the development of individual competence began to share collective learning and practice. In the second year, personal exchanges were active in all the topics of activities, and personal level competence was activated such that more activities of critical knowledge formation were performed on an individual level. On the basis of the development of the individual level formed in the second, individual competence and organizational capacity developed. Factors that have influenced the development of capacities of PLC include: disclosure of activities outside the community, participation in outsiders, provision of procedures to share equal participation and leadership, voluntary and critical participation of teachers, improvement of mathematics teaching methods, sharing themes and visions.

• 대한수학교육학회지:수학교육학연구
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• 제8권1호
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• pp.145-162
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• 1998

This study investigated the effect of teaching mathematical communication in mathematics learning. Cooperative learning, mathematics pin pals, and writing a mathematics diary were used to teach how to communicate mathematically. The experimental group was assigned to cooperate in class, to write a mathematics diary at the end of each class, and to exchange the mathematics pen pals once a week. The control group was taught by the traditional teaching method. The results were analyzed quantitatively and qualitatively. The learning achievement between the two groups was performed with pretests and posttests. And after this study, mathematics pen pals, video protocol and open-ended test were analyzed. The results of this study are the following: 1. There were little differences in learning achievement test between the group taught through communication and those not. And there were little differences in the results of achievement test between the two groups-high and low level classes.2. Cooperative learning, writing a mathematics diary and mathematics pen pals were effective as methods of teaching communication mathematically. The analysis of mathematics pen pals which is to investigate student's writing abilities showed that pen pal partners were improved in QCAI communication levels. There was a significant difference between the two groups in open-ended test. This means that communication learning has an effect on the tests for mathematical thought, reasoning, and creative thought. The analysis of video protocol showed that four students in a cooperative group were improved in their speaking and listening abilities.

• 한국수학교육학회지시리즈E:수학교육논문집
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• 제29권3호
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• pp.281-300
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• 2015

본 연구의 목적은 스토리텔링 수학 교과서 개발과 학교 현장에서 스토리텔링 교과서 활용의 방향성을 제시하기 위해, 2009 개정 교육과정에 따른 중학교 2학년 수학 교과서 5종을 연구 대상으로 수학 과제 유형에 따른 인지적 노력 수준, 답안 유형, 스토리텔링 유형을 분석하였다. 연구 결과, 첫째, 수학 과제의 인지적 노력 수준은 공통적으로 모든 교과 내용 영역에서 PNC(Procedures without Connections) 과제가 가장 많은 비중을 차지하였고, 수학적 내용 과제에서는 인지적 노력이 낮은 수준의 과제(Low-Level)가 많았고, 수학적 활동 과제에서는 인지적 노력이 높은 수준의 과제(High-Level)가 더 많았다. 둘째, 학생들에게 요구하는 답안 유형은 모든 영역에서 단답형이 가장 많았고, 수학적 내용 과제의 대부분은 단답형, 수학적 활동 과제는 단답형과 설명형이 많았다. 마지막으로 스토리텔링의 유형은 실생활 연계형이 가장 많은 비중을 차지하고 있었고, 수학적 활동 과제의 수가 수학적 내용 과제의 수보다 휠씬 적었다. 그러나 스토리텔링 유형이 반영된 과제에서는 수학적 활동 과제의 비율이 수학적 내용 과제의 비율보다 더 높았다. 이러한 연구 결과를 바탕으로 향후 다른 학년의 스토리텔링 수학 교과서를 개발하고 학교 현장에 적용할 때, 수학 과제 유형에 따른 인지적 노력 수준, 답안 유형, 스토리텔링 유형에 대해서 균형성과 다양성을 고려해야할 필요성을 제시할 수 있다.

• 대한수학교육학회지:학교수학
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• 제13권1호
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• pp.207-227
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• 2011

다양한 정보의 홍수 속에서 순간순간 의사결정을 해야 하는 사회구성원은 주어진 정보를 통해 합리적인 의사결정과 비판적 사고가 요구된다. 이에 본 연구에서는 초등학교 6학년 학생들의 설문 조사 활동을 통해 설문 주제 및 설문 과정을 살펴보고, 이 과정에서 나타나는 아동의 통계적 사고를 분석하기 위해 자료의 수집, 자료의 기술, 자료의 조직과 요약, 자료의 그래프 표현, 자료의 해석과 분석 측면을 중심으로 심도 있게 분석하였다. 연구 결과, 습관적(Idiosyncratic) 사고 수준(1수준), 전이적(Transitional) 사고 수준(2수준), 양적 (Quantitative) 사고 수준(3수준), 분석적(Analytical) 사고 수준(4수준)의 4단계 중 2~4수준에 걸쳐 통계적 사고의 수준을 나타냈다.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제8권4호
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• pp.227-260
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• 2004

This article represents a survey on the Romanian mathematics education. we emphasize not only some of recent, specific and significant Romanian methods concerning the teaching and learning of mathematics, starting from the pre-school and primary level to the university mathematics education, but also the role of the national and international mathematical competitions, the education of mathematics teacher, the formation of the researchers in mathematics, their contributions and perspectives, the mathematics education in society and culture, the technology in mathematics education, links between research and practice, topical developments and for the future and other related topics.

• Korean Journal of Mathematics
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• 제18권4호
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• pp.409-424
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• 2010

We observed the symptoms that occur to students who dislike mathematics when they study mathematics and the data that mathematics is related to foreign language. This study investigated the relation between mathematics and foreign language. Continuous immersion aids not only in acquiring language but also in learning mathematics. For continuous immersion, it is essential to organize small class. We organized small class and compared large class with small class about how the relation between mathematics and language appears in achievement, rate of presence, rate of submission of report, and attitude and enthusiasm. Based on the result, we try to find out the way to increase understanding mathematics and level up the achievements.