• 한국수학교육학회지시리즈A:수학교육
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• 제55권1호
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• pp.41-71
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• 2016

The purpose of this study is to investigate elementary students' communication in process of applying mathematical modeling. For this study, 22 fifth graders in an elementary school were observed by applying mathematical modeling process (presentation of problem ${\rightarrow}$ model inducement activity ${\rightarrow}$ model exploration activity ${\rightarrow}$ model application activity). And the level of their communication with their activity sheets and outputs, observation records and interviews were also analyzed. Additionally, by analyzing the activity cases of and , this study researched that what is a positive influence on students' communication skills. Whereas showed significant advance in the level of communication, who communicated actively on speaking area but not on every areas showed insensible changes. To improve communication abilities, cognitive tension and debate situation are needed. This means, mathematical education should continuously provide students with mathematical communication learning, and a class which contains mathematical communication experiences (such as mathematical modeling) will be needed.

• 한국수학교육학회지시리즈E:수학교육논문집
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• 제21권3호
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• pp.527-540
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• 2007

수학적 지식들이 참으로 인정되기 위해서는 많은 시간과 노력이 필요하다. 수학적 지식들은 추가되거나, 수정되거나, 혹은 거짓인 것으로 밝혀져왔다. 수학적 지식들은 수학적 언어, 명제, 추론, 질문, 메타수학적 관점으로 이루어져있다. 이것들은 수학자들의 연구과 반박에 의해, 반박을 고려한 증명의 수정에 의해, 새로운 개념의 소개에 의해, 새로운 개념에 대한 질문의 추가에 의해, 새로운 질문에 대한 답변을 찾기 위한 노력에 의해, 이전의 연구들을 현재에 적용하려는 시도에 의해 끊임없이 변화되어왔다. 본 연구에서는 Kitcher가 제시한 수학적 지식의 변화를 소개하고, 그 변화의 다양한 예에 대하여 살펴본다.

• 한국학교수학회논문집
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• 제15권4호
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• pp.747-770
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• 2012

본 연구에서는 수학교과서 중 함수 단원을 중심으로 수학적 모델링 지도 자료를 개발하고, 이에 알맞은 교수 학습 모형을 정립한다. 그리고 개발한 수학적 모델링 지도 자료를 활용한 수업이 고등학생의 학업성취도, 수학교과에 대한 학습태도와 불안도에 어떠한 영향을 미치는지를 알아보는데 그 목적이 있다. 본 연구의 연구문제는 다음과 같다. 첫째, 수학 모델링 자료를 사용한 수업집단과 전통적인 교과서 중심 수업을 한 수업집단 사이에 학업성취도에 있어 차이가 있는가? 둘째, 수학 모델링 자료를 사용한 수업집단과 전통적인 교과서 중심수업을 한 수업집단 사이에 수학교과에 대한 학습태도와 불안도 에 어떠한 영향을 미치는지를 알아보는 것이다. 셋째, 수학적 모델링 자료를 사용한 수업에 대한 학생들의 반응은 어떠한 가이다.

• 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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• 제25권4호
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• pp.285-309
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• 2022

A large body of previous studies investigated mathematical tasks by analyzing the design process prior to lessons or textbooks. While researchers have revealed the significant roles of mathematical tasks within written curricular, there has been a call for studies about how mathematical tasks are implemented or what is experienced and learned by students as enacted curriculum. This article proposes a mathematical task analytic framework based on a holistic definition of tasks encompassing both written tasks and the process of task enactment. We synthesized the features of the mathematical tasks and developed a task analytic framework with multiple dimensions: breadth, depth, bridging, openness, and interaction. We also applied the scoring rubric to analyze three multiplication tasks to illustrate the framework by its five dimensions. We illustrate how a series of tasks are analyzed through the framework when students are engaged in multiplicative thinking. The framework can provide important information about the qualities of planned tasks for mathematics instruction (proactive) and the qualities of implemented tasks during instruction (reactive). This framework will be beneficial for curriculum designers to design rich tasks with more careful consideration of how each feature of the tasks would be attained and for teachers to transform mathematical tasks with the provision of meaningful learning activities into implementation.

• East Asian mathematical journal
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• 제38권4호
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• pp.463-496
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• 2022

The purpose of this study is to analyze the mathematical creativity and computational thinking of mathematically gifted elementary students through a convergence class using programming and to identify what it means to provide the convergence class using Python for the mathematical creativity and computational thinking of mathematically gifted elementary students. To this end, the content of the nine sessions of the Python-applied convergence programs were developed, exploratory and heuristic case study was conducted to observe and analyze the mathematical creativity and computational thinking of mathematically gifted elementary students. The subject of this study was a single group of sixteen students from the mathematics and science gifted class, and the content of the nine sessions of the Python convergence class was recorded on their tablets. Additional data was collected through audio recording, observation. In fact, in order to solve a given problem creatively, students not only naturally organized and formalized existing mathematical concepts, mathematical symbols, and programming instructions, but also showed divergent thinking to solve problems flexibly from various perspectives. In addition, students experienced abstraction, iterative thinking, and critical thinking through activities to remove unnecessary elements, extract key elements, analyze mathematical concepts, and decompose problems into small components, and math gifted students showed a sense of achievement and challenge.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제26권3호
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• pp.253-270
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• 2023

This study aims to investigate the extent to which Korean high school textbooks incorporate opportunities for students to engage in the mathematical modeling process through tasks related to exponential and logarithmic functions. The tasks in three textbooks were analyzed based on the actions required for each stage in the mathematical modeling process, which includes identifying essential variables, formulating models, performing operations, interpreting results, and validating the outcomes. The study identified 324 units across the three textbooks, and the reliability coefficient was 0.869, indicating a high level of agreement in the coding process. The analysis revealed that the distribution of tasks requiring engagement in each of the five stages was similar in all three textbooks, reflecting the 2015 revised curriculum and national curriculum system. Among the 324 analyzed tasks, the highest proportion of the units required performing operations found in the mathematical modeling process. The findings suggest a need to include high-quality tasks that allow students to experience the entire process of mathematical modeling and to acknowledge the limitations of textbooks in providing appropriate opportunities for mathematical modeling with a heavy emphasis on performing operations. These results provide implications for the development of mathematical modeling activities and the reconstruction of textbook tasks in school mathematics, emphasizing the need to enhance opportunities for students to engage in mathematical modeling tasks and for teachers to provide support for students in the tasks.

• 한국학교수학회논문집
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• 제11권2호
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• pp.201-219
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• 2008

본 연구는 초등학교 6학년 수학 수업에서 이루어지는 교사와 학생의 의사소통을 분석하고 의사소통 수준에 따라 학생의 수학적 사고의 특징을 탐구하였다. 이를 위해 수학적 의사소통을 질문하기, 설명하기, 수학적 아이디어의 근원이라는 세 가지 요소로 나누어 분석하였다. 또한 수학적 의사소통의 수준에 따라 학생의 수학적 사고의 빈도와 수학적 사고의 유형이 어떻게 다른지 양적연구방법과 질적연구방법을 병행하여 살펴보았다. 교사와 학생의 수학적 의사소통은 하위 요소에 따라 수준이 동일하지 않았으나 학생 간 질문이 활발할수록, 교사가 수학적으로 다양한 해결방법과 수학적으로 정당화할 수 있는 설명을 요구할수록, 학생의 수학적 아이디어를 적극적으로 반영할수록 수학적 의사소통이 활발히 일어났다. 그리고 수학적 의사소통 수준이 높을수록 학생의 수학적 사고의 빈도가 많이 나타났고 학생의 수학적 사고의 유형도 높은 단계를 나타내었다. 이를 통해 본 논문은 초등학교 수준에서 경험적 근거를 토대로 수학적 의사소통의 중요성을 강조하고 이를 향상시키기 위한 시사점을 제공한다.

• 한국수학교육학회지시리즈A:수학교육
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• 제26권2호
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• pp.9-13
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• 1988

Mathematics education is generally to cultivate mathematical thought. Most meaningful thought is to solve a certain given situation, that is, a problem. The aim of mathematies education could be identified with the cultivation of mathematical problem-solving ability. To cultivate mathematical problem-solving ability, it is necessary to study the nature of mathematical ability and its aspects pertaining to problem-solving ability. The purpose of this study is to investigate the relation between problem-solving ability and classficational viewpoint of mathematical verbal problems, and bet ween the detailed abilities of problem-solving procedure and classificational viewpoint of mathematical verbal problems. With the intention of doing this work, two tests were given to the third-year students of middle school, one is problem-solving test and the other classificational viewpoint test. The results of these two tests are follow ing. 1. The detailed abilities of problem-solving procedure are correlated with each other: such as ability of understanding, execution and looking-back. 2. From the viewpoint of structure and context, students classified mathematical verbal problems. 3. The students who are proficient at problem-solving, understanding, execution, and looking-back have a tendency to classify mathematical verbal problems from a structural viewpoint, while the students who are not proficient at the above four abilities have a tendency to classify mathematical verbal problems from a contextual viewpoint. As the above results, following conclusions can be made. 1. The students have recognized at least two fundamental dimensions of structure and context when they classified mathematical verbal problems. 2. The abilities of understanding, execution, and looking- back effect problem-solving ability correlating with each other. 3. The instruction emphasizing the importance of the structure of mathematical problems could be one of the methods cultivating student's problem-solving ability.

• 대한수학교육학회지:수학교육학연구
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• 제17권4호
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• pp.395-418
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• 2007

수학교육에서 수학적 의사소통을 강화하는 것은 교사에게 많은 것을 의존하는 교실 상황을 학생들이 그들 자신의 생각을 책임지는 상황으로 바꾸는데 도움을 준다. 이 연구는 수학적 의사소통에서 중요한 역할을 할 것으로 예상되는 수학적 과제가 수학적 의사소통에 미치는 영향에 대하여 탐구하였다. 이를 위해 인지적 요구수준에 따라 수학적 과제를 암기형, 절차형, 개념원리형, 탐구형으로 나누고, 각 과제 유형에 따라 학생들의 수학적 의사소통 참여, 수학적 정당화 유형, 수학적 합의과정이 어떻게 달라지는지 양적 분석방법과 질적 분석방법을 병행하여 살펴보았다. 수학적 과제는 학생들의 수학적 의사소통과 밀접한 연관성을 갖고 있으며, 어떤 과제로 학습하느냐에 따라 학습 효과는 달라진다. 따라서 해결방법이 다양하고 인지적 요구수준이 높은 수학적 과제를 제공하는 것은 학생들의 수학적 의사소통 능력을 향상시키는데 중요하다.