• Communications of Mathematical Education
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• v.32 no.1
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• pp.59-77
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• 2018

This study aims to investigate reflections of secondary pre-service mathematics teachers and their changes through practicing as assistant teacher in mathematics classrooms. For the purpose of this study, research questions are addressed on the reflections and their changes. During the 2015 Spring semester, secondary pre-service mathematics teachers took a course related to working as assistant teachers in regular mathematics lessons in a middle school. This study selected cases of two pre-service teachers. The data such as reports on their practices and final meeting report with teachers were collected during the semester. The results showed that the secondary pre-service mathematics teachers reflected teachers, students, mathematics contents, and themselves in their reports. In addition, each participant showed different contents of reflections. This difference implied that secondary pre-service mathematics teachers could have different reflections according to the types of lessons that they participated in.

• School Mathematics
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• v.15 no.3
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• pp.503-531
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• 2013

This study aims to investigate how secondary mathematics teachers use mathematics curriculum materials such as textbooks and teachers' guide in planning lessons and for their learning. 24 in-service mathematics teachers participated in surveys and two among them were interviewed. The findings from the data analysis suggest that: a) the teachers actively engaged in decision-making processes of the transition from written curriculum to intended curriculum; and b) the teachers showed a tendency of consulting to the ideas suggested in the curriculum materials for selecting objectives and contents for lessons and the what to assess, not ideas for selecting teaching methods and how to assess. Also, various factors such as students' achievement, participation, interest in mathematics, family environment, and college entrance were identified to influence the teachers' use of the curriculum materials.

• Journal of Educational Research in Mathematics
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• v.23 no.3
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• pp.373-388
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• 2013

This paper is to investigate how two elementary school teacher's belief mathematics as educational content, and teaching and learning mathematics as a part of educational methodology, and what the two teachers believe towards gifted children and their education, and what the classes demonstrate and its effects on the sociomathematical norms. To investigate this matter, the study has been conducted with two teachers who have long years of experience in teaching gifted children, but fall into different belief categories. The results of the study show that teacher A falls into the following category: the essentiality of mathematics as 'traditional', teaching mathematics as 'blended', and learning mathematics as 'traditional'. In addition, teacher A views mathematically gifted children as autonomous researchers with low achievement and believes that the teacher is a learning assistant. On the other hand, teacher B falls into the following category: the essentiality of mathematics as 'non-traditional', teaching mathematics as 'non-traditional, and learning mathematics as 'non-traditional.' Also, teacher B views mathematically gifted children as autonomous researchers with high achievement and believes that the teacher is a learning guide. In the teacher A's class for gifted elementary school students, problem solving rule and the answers were considered as important factors and sociomathematical norms that valued difficult arithmetic operation were demonstrated However, in the teacher B's class for gifted elementary school students, sociomathematical norms that valued the process of problem solving, mathematical explanations and justification more than the answers were demonstrated. Based on the results, the implications regarding the education of mathematically gifted students were investigated.

• Communications of Mathematical Education
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• v.12
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• pp.141-153
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• 2001

지금의 수학교육현장은 결과적인 완성된 지식을 교사 주도하에 연역적으로 지도하는 것에 대해 문제가 있는 것으로 지적되어 그에 대한 대안으로 본 논문은 인지갈등을 통한 수학과 학습 모형을 이용한 교수-학습 방법을 제시하고자 한다. 인지 갈등을 유발하여 학습동기를 부여한 후 학생과 교사가 함께 그 갈등을 풀어 나감으로서 동기유발과 수학적 능력을 길러 줄 수 있을 것이다. 특히, 보편화된 컴퓨터 환경은 이러한 수업을 더욱 용이하게 함에 주목하고 또 문제 설정 등 다양한 기법을 통한 수업 모형을 효과적으로 활용할 수 있으며 주제에 따라서는 수학사적 내용을 첨가하여 흥미 있는 수업을 할 수 있다. 이러한 수업방법은 학생들의 흥미와 참여를 유도하게 되어 효과적일 것이다.

• Communications of Mathematical Education
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• v.24 no.3
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• pp.831-842
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• 2010

In this study, in order to use history of mathematics effectively, we investigate the pre-service teachers' perceptions about utilizing history of mathematics. As a result, we must introduce history of mathematics will be able to apply concretely in class to the pre-service teachers. And We must provide the method which is various will be able to apply history of mathematics in class to the pre-service teachers enough. Also, We must provide the instance which relates in utilizing history of mathematics to pre-service teachers enough.

• Journal of the Korean School Mathematics Society
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• v.24 no.1
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• pp.107-126
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• 2021

Lexicon is closely related to human thinking. In particular, a classroom lexicon results from objectifying the teaching-learning activity in classrooms, allowing humans to recognize and explore the activities and phenomena in classrooms explicitly. Therefore, using the lexicon and clarifying what the words mean is to enhance the understanding of teaching activities. The International Classroom Lexicon Project investigates and identifies each country's mathematics classroom lexicon, where ten countries participated. The purpose of this current study is to compare the differences in perceptions between teachers and pre-service teachers about the Korean classroom lexicon previously investigated as a part of the international collaborative project. By comparing the responses of 147 teachers and 127 pre-service teachers, the degree of familiarity with pedagogical terms and the frequency of occurrence or usage in classrooms were compared and analyzed to understand the recognition of pre-service teachers' pedagogical terms. Finally, we also discuss reflections on Korean mathematics teaching practices in Korea.

• Journal of the Korean School Mathematics Society
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• v.16 no.4
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• pp.695-717
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• 2013

Teacher knowledge needed for teaching is bound to be revealed in teaching the subject matter in relation to the given instructional context. Given this, recent studies on mathematics teacher knowledge tend to analyze actual Mathematical Knowledge in Teaching [MKiT]. This study focused on the dimension of transformation and its related codes in Knowledge Quartet, which has been recognized as a MKiT framework, and analyzed a Korean teacher's transformation knowledge revealed in her elementary mathematics teaching. The analysis showed that the codes related to the dimension of transformation were useful in analyzing teacher knowledge in the Korean context. However, a few codes need to be revised or added for more suitability. On the basis of these results, this paper closes with implications for analyzing teacher knowledge in mathematics teaching.

• Journal of the Korean School Mathematics Society
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• v.8 no.2
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• pp.291-314
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• 2005

The purpose of this paper was to investigate the difficulties experienced by the novice elementary school teachers in the mathematics classes and suggest some implications for teacher education and effective adaptation of novice teachers. The researchers observed mathematics lessons of 6 novice elementary school teachers and interviewed on the difficulties that they experience in teaching mathematics. The data were collected by lesson observations, interviews, discussion and email communications and categorized the data the types of difficulties those the teachers experience. The difficulties were difference between theory and practice, explanation, questioning, differentiated lesson, application of teaching method, evaluation, and understanding of mathematics. The implication from this study is that novice teachers need to supported by the administration as well as actively participate at various types of educational meetings.

• Communications of Mathematical Education
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• v.23 no.2
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• pp.429-459
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• 2009

The purpose of this study was to help the students deepen their mathematical understanding and practitioner improve her mathematics lessons. The teacher-researcher developed mathematical situation based problem solving instruction model which was modified from PBL(Problem Based Learning instruction model). Three lessons were performed in the cycle of reflection, plan, and action. As a result of performance, reflective knowledges were noted as followed points; students' mathematical understanding, mathematical situation based problem solving instruction model, improvement of mathematics teachers.

• Journal of the Korean School Mathematics Society
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• v.20 no.4
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• pp.537-560
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• 2017

This study aims to investigate secondary mathematics teachers' beliefs about graphing calculator use in mathematics classrooms. For the purpose, we adopted a research instrument that was developed by Brown et. al(2007) and surveyed 32 mathematics teachers about their beliefs about graphing calculator use and teaching practice with calculators in their mathematics instruction. The data analysis suggested that the teachers rarely used calculators in their instruction and they have not had opportunities to use calculators in learning and teaching mathematics. Also, results suggested that the many teachers showed "Crutch beliefs"about the use of calculators in mathematics instruction.