• 한국수학교육학회지시리즈A:수학교육
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• 제44권2호
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• pp.159-167
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• 2005

As the 7th mathematics curriculum reform in Korea was implemented with its goal based on Freudenthal's perspectives on mathematization theory, the research on the effect of mathematization has been become more significant. The purpose of this thesis is not only to find whether this foreign theory would be also applied effectively into our educational practice in Korea, but also to investigate how much important role teachers should play in their teaching students, in order that students accomplish the process of mathematization more effectively. Two case studies were carried out with two groups of middle-school students using qualitative-research method with the research instrument designed by the researcher. It was found that we could get the possibility of being able to apply effectively this theory even to our educational practice since the students engaged in their mathematization using the horizontal mathematization and the vertical mathematization in geometry. Also, it was mentioned that teachers' role was so important in guiding students' processes of mathematization, although mathematization is the teaching-learning theory, stimulating students' activities. Since the Freudenthal's mathematization applied in the thesis is so meaningful in our educational practice, we need more various research about this theory that helps students develope their mathematical thinking.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제6권1호
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• pp.65-80
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• 2002

The current reform recommendations in the United States have been widely recognized but the outcomes with regard to the teaching practice in the classroom were evaluated as ineffective to faster students' mathematical learning. Given this, this paper reviews the current mathematics education reform in terms of the typical and the recommended teaching practices. An analysis of influences of theoretical perspectives is then provided as an attempt to explore the underpinnings that implicitly motivate the current reform movement. This paper then identifies the difficulties in implementing reform ideals. Building on the review and the analysis, this paper finally provides implications of re-conceptualizing mathematics instruction in the current reform era.

• 한국수학교육학회지시리즈E:수학교육논문집
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• 제18권2호
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• pp.9-33
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• 2004

The purpose of this paper is to contribute to the dialogue about the notion of advanced mathematical thinking by offering an alternative characterization for this idea, namely advancing mathematical activity. We use the term advancing (versus advanced) because we emphasize the progression and evolution of students' reasoning in relation to their previous activity. We also use the term activity, rather than thinking. This shift in language reflects our characterization of progression in mathematical thinking as acts of participation in a variety of different socially or culturally situated mathematical practices. We emphasize for these practices the changing nature of student' mathematical activity and frame the process of progression in terms of multiple layers of horizontal and vertical mathematizing.

• 한국수학교육학회지시리즈C:초등수학교육
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• 제24권1호
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• pp.21-41
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• 2021

2015 개정 수학과 교육과정에서 교과 역량의 필요성이 부각되고 그 하위 요소까지 명시되었지만, 교육과정을 구체적으로 반영한 교과서에서 정작 교과 역량을 얼마나 어느 정도로 다루고 있는지에 대한 분석은 별반 없다. 이에 본 논문은 초등학교 3~4학년군 수학 교과서에 의도된 교과 역량을 분석하였다. 그 결과, 의사소통과 추론 능력이 전체의 절반 정도로 가장 많이 나타났고, 그 다음으로 창의·융합, 정보 처리, 태도 및 실천, 문제 해결 능력 순서로 제시되어 있었다. 또한 각 교과 역량의 하위 요소별로 분석한 결과 그 편차가 큰 것을 알 수 있었다. 본 논문은 수학 교과 역량별로 하위 요소까지 분석하고 구체적인 사례를 제시함으로써 수학 교과서에 의도된 교과 역량의 특성을 파악하고 더불어 역량 기반의 교과서 개발과 관련하여 논의를 촉진할 것으로 기대된다.

• 대한수학교육학회지:학교수학
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• 제4권1호
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• pp.79-95
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• 2002

This paper is to make strides toward an enriched understanding of student learning and performance in mathematics that acknowledges the roles social and cultural contexts play in what students learn as well as what we are able to team about student learning. A student's mathematical practice over a year and a half is presented in detail in order to explore the relationships between classroom contexts and student performance. This study was situated at a K-4 urban elementary school in the United States. The data used for this study included classroom observations, interviews with the teachers and the student, and document collection. The data were analyzed by characterizing each classroom context and exploring the student's practice both in the classrooms and in the interviews. Despite the student's ongoing status as a struggling student, there were tremendous changes in his level of engagement in and persistence with mathematical tasks. The student was substantially more engaged in and enthusiastic about the daily mathematics lessons in third grade than he had been in second. However, we found little improvement in his mathematical understanding and performance during class or in the interviews. This highlights that increased engagement in the mathematical tasks does not necessarily signal increased learning. This paper discusses several issues of learning and performance raised by the student, looking at the relationship between classroom context and student performance. This paper also considers implications for how students' performances are interpreted and how learning is assessed.

• East Asian mathematical journal
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• 제38권4호
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• pp.397-414
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• 2022

This study tried to explore and understand the meaning, and the properties of noticing. The result of this study were first, the difference in mathematical noticing is distinguished in either the object which is paid attention is different or the object is same but differently interpreted or react. The cause of each difference could be described as mathematical objects such as conceptual objects and perceptual features. Second, teachers' teaching strategies, which narrow the gap in attention and play a key role in the formation of mathematical meaning, appeared in various places. This teaching strategy was implemented to distract students' attention. This study confirmed that the mathematical attention of teachers and students in math classes will differ depending on the object to which they pay attention, and that difference will be narrowed through teacher's discourse practice and teaching strategies through communication strategies.

• 대한수학교육학회지:수학교육학연구
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• 제20권3호
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• pp.255-274
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• 2010

본 연구는 수학교과에서 PBL 환경을 구축하고 수학과 PBL의 실행과 활성화에 도움을 주기 위하여 '수학과 PBL 문제분석 기준'과 '수학과 PBL 학습모형'을 제시하는 것에 그 목적을 두고 있다. 이를 위하여 이론적 배경을 토대로 PBL 문제의 특징을 분류하고 각 영역의 하부항목을 추출하여 작성한 기준표를 전문가들의 내용타당도 검사와 신뢰도 검사를 통하여 개발하였다. 개발한 수학과 PBL 문제분석 기준표는 수학과 PBL을 위한 문제개발의 기준이 될 뿐만 아니라 문제의 적합성을 판단할 수 있는 기준이 될 것이다. 또한 수학교과의 특성을 고려한 수학과 PBL 학습모형을 제시하고 이를 구체화하기 위하여 제시한 학습모형을 적용한 수업을 실시하였으며, 실행한 PBL 수업의 관찰과 자료 분석을 통하여 수학과 PBL 학습모형을 구체화 하였다. 이는 수학교과의 특성을 고려하지 않은 모형을 적용한 기존의 연구에서 발생할 수 있는 문제점들을 극복할 수 있는 모형으로서 '미니강의'의 단계가 특징적으로 적용된 모형이다.

• 한국수학교육학회지시리즈A:수학교육
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• 제44권1호
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• pp.125-141
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• 2005

For many years, the educational effects of instructional manipulatives in mathematics education have been investigated in classroom practice and educational research. This paper demonstrates how pattern block, a type of instructional manipulatives could be used and integrated in elementary mathematics areas in order to develop student's mathematical thinking Further, students' thinking process with pattern blocks is analysed to show their thinking process.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제9권1호
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• pp.47-58
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• 2005

Although student-centered teaching practices have been advocated in mathematics education reform, implementing them at the classroom level remains challenging. This exploratory case study examined two unevenly successful student-centered approaches to see how teachers understand and characterize reform, and to articulate issues in implementing reform ideas. The comparison and contrast between the classrooms showed similar classroom social norms but dramatically different mathematical practices. This affords the possibility of exploring the challenges of reform for teachers and other personnel who are attempting to move teaching practices towards the student-centered ideals.

• 한국수학교육학회지시리즈A:수학교육
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• 제39권1호
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• pp.49-58
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• 2000

The purpose of this study is to investigate how to teach algorithms in mathematics class. Until recently, traditional school mathematics was primarily treated as drill and practice or memorizing of algorithmic skills. In an attempt to shift the focus and energies of mathematics teachers toward problem solving, conceptual understanding and the development of number sense, the recent reform recommendations do-emphasize algorithmic skills, in particular, paper-pencil algorithms. But the development of algorithmic thinking provides the foundation for student's mathematical power and confidence in their ability to do mathematics. Hence, for learning algorithms meaningfully, they should be taught with problem solving and conceptual understanding.