• 한국수학교육학회지시리즈C:초등수학교육
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• 제4권1호
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• pp.43-49
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• 2000

The purpose of this paper is to address the theory of counting and the development of number concepts. Leslie Steffe and his colleagues developed the theory of children's counting types using the teaching experiment. As the results of their research, they published two books： "Children's counting types" (Steffe, von Glasersfeld, Richards, '||'&'||' Cobb, 1983) and "Construction of arithmetic meanings and strategies" (Steffe, Cobb, ＆ von Glasersfeld, 1988). They classified children's counting types into five categories： Perceptual Counting Stage, Figural Counting Stages, Initial Number Sequence Stage, Tacitly Nested Number Sequence Stage, and Explicitly Nested Number Sequence Stage. The meaning of this theory is added in the last part of this paper. this paper.

• 한국수학교육학회지시리즈A:수학교육
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• 제51권4호
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• pp.337-349
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• 2012

The purpose of this study is to survey and analyze conception on creativity carried out from elementary school teachers in Seoul and Gyeonggi-do area. As results, first, most of teachers replied divergent thinking, creative problem solving, and new creation as general creativity and mathematical creativity. Secondly, they showed that thinking process would be related to transfer and cognition in terms of mathematical creativity factors. Lastly, there are significant differences among groups according to gender, teaching career, and age, even though most teachers expressed sympathy for need of creativity education in mathematics education.

• 한국수학교육학회지시리즈A:수학교육
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• 제48권3호
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• pp.213-234
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• 2009

College students have a diverse educational background with the recent multiplicity in university admissions standards and procedures. As a result, their mathematical preparation and performance varies widely. Teaching calculus to such a diverse student group is a demanding task. Differentiated curriculum has been conducted for the university calculus course in Yonsei university for the past five years. A case study on the differentiated curriculum in Yonsei university is presented for the curriculum improvement. With its ideal purpose, the differentiated curriculum has created issues and problems in practice. As an alternative to the ideal differentiated curriculum, this study shows that a computer-based approach using a numerical software could give aids to overcoming the difficulty of inadequately prepared students in the learning process while mathematically sophisticated students could keep interested in the course. This study also presents the useful topics in calculus that can be implemented for computer-based calculus education and provides guidelines for the effective usage.

• 한국지구과학회지
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• 제40권4호
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• pp.340-352
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• 2019

The purpose of science education is scientific literacy, which is extended in its meaning in the $21^{st}$ century. Students must be equipped with the skills necessary to solve problems from the community beyond obtaining the knowledge from curiosity, which is called 'computational thinking'. In this paper, the authors tried to define computational thinking in science education from the view of scientific literacy in the $21^{st}$ century; (1) computational thinking is an explicit skill shown in the two steps of abstracting the problems and automating solutions, (2) computational thinking consists of concrete components and practices which are observable and measurable, (3) computational thinking is a catalyst for STEAM (Science, Technology, Engineering, Arts, and Mathematics) education, and (4) computational thinking is a cognitive process to be learned. More implication about the necessity of including computational thinking and its emphasis in implementing in science teaching and learning for the envisioned scientific literacy is added.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제22권2호
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• pp.135-152
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• 2019

This conceptual paper proposes a conceptualization regarding teacher candidates' experiences as learners during instructional activities implemented by teacher educators in practice-based teacher education programs. We argue that the current learning cycle framework for teacher candidates to engage in core teaching practices does not fully address teacher candidates' own learning experiences as learners. To provide a rationale for our proposal, we examine the current conceptualization of learning to enact core practices and suggest the need for integrating teacher candidates' experiences into the current conceptualization. We also draw on research on figured worlds as an effort to conceptualize teacher candidates' experiences coming from multiple figured world. We present some examples from our own mathematics methods courses to illustrate how this newly proposed framework can be used in practice and share remaining questions for future research.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제25권2호
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• pp.117-133
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• 2022

Examining ways to interact with students in small groups is an important topic for researchers to understand. Existing studies pertaining to the topic have not shed light on knowing why teachers interact with students in small groups the way they do. Given that teacher identity shapes teaching practices, this study explores how teacher identity shapes teachers' interaction with students in small groups. Working with two beginning teachers, I conducted four interviews to collect the data related to reasons behind their interactions with students in small groups in the interview. I analyzed the interview transcripts using a thematic analysis. I found that one teacher's teacher identity was related to her personal experiences as a child and a learner and another teacher's teacher identity was related to her view of teachers' roles as a teacher. I provide discussion and implications of this study.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제25권3호
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• pp.189-199
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• 2022

A debate about the importance of geometry courses has existed for years. The questions have revolved around its significance to students and teachers alike. This study looks to determine whether a teacher taking a college-level geometry course has a positive relationship with their students' algebraic reasoning skills. Using data from the High School Longitudinal Study 2009 (HSLS09: Ingels et al., 2011, 2014), it was determined that 9th-grade teachers who took a college-level geometry course had a significant positive association with their students' 11th-grade algebraic reasoning scores. This study suggests that teachers who take geometry during college have a lasting effect on their students. The implications of these findings and how they may affect higher education are discussed.

• 공학교육연구
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• 제24권4호
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• pp.41-51
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• 2021

This paper is to study whether cooperative learning applying group games becomes a teaching method that can increase interest and participation in class in calculus and the effect of the number of students. To increase interest and participation in class, the researcher conducted cooperative learning by applying smartphones and various game tools to group games. The consequences of the study confirmed that students' interest and participation in the class increased regardless of their mathematics basics. Therefore, it is expected that the calculus which is difficult for students to understand will be more easily approached by cooperative learning applying group games in the future.

• 한국초등수학교육학회지
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• 제21권2호
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• pp.291-308
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• 2017

초등학교 고유어 수학 용어는 1946년에 군정청 문교부에서 각계의 의견을 들어 처음으로 만들어졌다. 당시에 만들어진 고유어 수학 용어의 대부분은 대개 한자의 뜻에 해당하는 고유어를 사용하거나, 그렇게 만든 것을 축약하여 만든 것이다. 그러나 20년도 지나지 않아 고유어 수학 용어의 반 정도가 다시 한자어 수학 용어로 환원되었고, 대부분 현재까지 그대로 사용되고 있다. 수학 교수 학습에서 한자어 수학 용어의 불편함이 지적되고 있고, 고유어 수학 용어의 사용이 도움이 될 것으로 주장되고 있지만, 고유어 수학 용어의 사용을 서두르는 것은 능사가 아니다. 한자어 수학 용어를 고유어 수학 용어로 바꾸는 시도는 신중해야 한다. 본 논문에서는 이러한 입장에서 성공적인 고유어 수학 용어의 사용을 위해 다음과 같은 세 가지 제언을 결론으로 제시한다. 첫째, 고유어 수학 용어를 만들려는 시도와 논의가 지속적으로 이루어져야 한다. 둘째, 현재 잘 존속하고 있는 고유어 수학 용어가 가진 생존력의 정체를 명확히 할 필요가 있다. 셋째, 현재 존속되지 않는 고유어 수학 용어의 실패 요인을 명확히 할 필요가 있다.

• 한국수학교육학회지시리즈E:수학교육논문집
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• 제21권1호
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• pp.107-124
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• 2007

최근에 우리나라 교육계에 가장 두드러지게 등장하는 것이 영재교육이다. 영재교육에 대한 많은 관심과 연구가 집중되어 지고 있지만 현재 우리나라 영재교육기관에서 영재교육을 받고 있는 학생들에 대한 추적연구나 중장기적 연구가 아직 미흡한 상태이다. 이 연구의 목적은 2005년도 서울시 지역교육청 영재 교육원과 2006년도 서울교육대학교 과학영재교육원에서 영재교육을 받고 있는 초등학생들의 영재 수학프로그램에 대한 인식을 영재 프로그램의 목표와 구성요소, 표준을 바탕으로 한 설문을 통해 분석하여 앞으로의 영재교육을 설계하는데 있어 학생들의 인식에 대한 자료도 참고가 되었으면 하는 것이다. 영재교육에 참가하는 학생들은 현재의 영재프로그램에 대해 대체로 긍정적인 반응을 보이지만 아직 초등학생이라는 발달적 단계로 놓여있는 점을 감안하여 영재프로그램에 참가하는 교사와 좀 더 친밀한 관계형성을 이루어지기를 바라고 학습에 있어서도 자기주도적인 학습이 좀 더 가능하기를 희망하고 있다. 이런 점을 감안하여 앞으로의 초등 영재 수학 프로그램이 개발되기를 바란다.