• 한국수학교육학회지시리즈D:수학교육연구
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• 제23권4호
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• pp.235-254
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• 2020

Through this study, we aimed to capture the nature of a mathematics method course, called "the Curriculum Development and Teaching Methods in Mathematics Education" which is a pedagogy course for teaching for secondary school mathematics taught at a university located in a south eastern part of South Korea. The research participants include three junior students who took the methods course and a local high school math teacher with two professors. The research has three parts. First, we designed a method course to prepare the junior or senior students for a teaching practicum. The individual students gave a mini lecture about a secondary mathematical topic as a course requirement. Second, the three students watched a classroom video-clip of the high school teacher and analyzed his instruction before the actual classroom visits. Furthermore, by "Let's Learn" program for students, the course was associated with a local community through the students and so that they could visit the teacher's classroom three times to observe his math classroom teaching. The students discussed the difference between their own mini lectures and the actual math classroom teaching to develop an understanding of what it entails to teach an actual math class. Third, the first author supervised the students' activities in the program including their report for it to bring out their findings to the class of the method course. We found out this method course provided the students with the experience of various aspects of actual math lesson as well as learning theories about the pedagogy for teaching for secondary school mathematics. We conclude that this course gives a model for the method course in mathematics education for secondary school mathematics.

• 한국수학교육학회지시리즈A:수학교육
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• 제45권2호
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• pp.217-230
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• 2006

The purpose of this study is to inquire the building process of Pedagogical Content Knowledge of prospective mathematics teachers about the function concepts. For this purpose, We performed the following steps; First, we performed the survey relaying to the prospective mathematics teachers' teaching experiences, capabilities of their error evaluation of the students, and viewpoints about the function concepts. Second, we performed the survey on the subject-matter knowledge about the function concepts and the key items of designing teaching plans about the function concepts. And then, we interviewed the participants to check the results of the surveys and to supplement the necessary contents. The collected data was relatively correlative and analyzed in the process. As a result, we found the followings; First, subject-matter knowledge of prospective mathematics teachers about the function concepts is different depending on the grades. Second, prospective mathematics teachers are building more extended function concepts through the major subjects. Third, the major subjects are important to build the Pedagogical Content Knowledge of function concepts. Fourth, teaching experience plays an important role in transforming subject-matter knowledge of function concepts to Pedagogical Content Knowledge of it. Fifth, building the Pedagogical Content Knowledge means transferring the teacher's viewpoint from himself/herself to the learner.

• 대한수학교육학회지:수학교육학연구
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• 제19권4호
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• pp.545-564
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• 2009

테크놀로지 내용교수지식(TPACK)은 1986년 Shulman이 제시한 내용교수지식(PCK)에 테크놀로지 지식이 통합된 새로운 지식 즉, 교사의 내용지식(CK), 교수학적 지식(PK), 테크놀로지 지식(TK)의 교집합에 해당하는 지식을 뜻한다. 본 연구에서는 2009년 1학기 서울시 소재 사범대학에서 팀 프로젝트를 중심으로 하는 테크놀로지 강의를 개설하고 설계, 분석하여 예비 수학교사의 TPACK 신장을 위한 방안을 모색하고자 하였다. 강의 초 예비 수학교사들은 테크놀로지에 대해 낮은 자신감을 나타냈지만, 강의가 끝날 무렵의 테크놀로지 관련 수학교수효능감은 3.88부터 4.50사이로 높게 나타났다. 또한, 예비 수학교사들은 팀 프로젝트가 TPACK에 긍정적 또는 매우 긍정적인 영향을 주었다고 응답했는데, 이는 팀 프로젝트를 중심으로 하는 테크놀로지 강의가 예비 수학교사가 앞으로 교사가 되어 테크놀로지를 활용하는 수업을 설계할 때 필요한 지식과 자신감을 갖도록 하는 데 효과적인 방법이 될 수 있음을 보여준다. 교사의 TPACK이 정보화 시대의 교육과정에서 제시하는 교육목표 달성을 위해 필수적인 지식이라 볼 때, 앞으로 예비 교사를 대상으로 하는 테크놀로지 강의가 테크놀로지의 사용 방법과 단편적인 적용 사례를 전달하는 방식보다 테크놀로지 활용 수업을 계획하고 설계하는 방식으로 변화되는 것이 바람직할 것으로 보인다.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제26권1호
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• pp.1-17
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• 2023

Over the last three decades, there has been an increasingly strong emphasis on group-centered approaches to mathematics teaching. One primary responsibility for teachers who use group-centered instruction is to "check in", or intervene, with groups to monitor group learning and provide mathematical support when necessary. While prior research has contributed valuable insight for successful teacher interventions in mathematics group work, there is a need for more fine-grained analyses of interactions between teachers and students. In this study, we co-conducted research with an exemplary middle grade teacher (Ms. Green) to learn about fine-grained details of her intervention practices, hoping to generate knowledge about successful teacher interventions that can be expanded, replicated, and/or contradicted in other contexts. Analyzing Ms. Green's practices as an exemplary case, we found that she used exceptionally short interventions (35 seconds on average), provided space for student dialogue, and applied four distinct strategies to support groups to make mathematical progress: (1) observing/listening before speaking; (2) using a combination of social and analytic scaffolds; (3) redirecting students to task instructions; (4) abruptly walking away. These findings imply that successful interventions may be characterized by brevity, shared dialogue between the teacher and students, and distinct (and sometimes unnatural) teaching moves.

• 한국수학교육학회지시리즈A:수학교육
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• 제43권1호
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• pp.1-12
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• 2004

We have studied the issues of the current math war in America. Traditionalists and the reformers have been arguing about the curriculums, teaching methods, use of calculators, basic skills, and assessment methods in K-12 mathematics. They both have strengths and weaknesses depending on the situation have contributed for the development of mathematics education. Instead of choosing between traditionalists and the reformist sides, we suggest to adopt an eclectic view point i.e., rigor and creativity, memorization and understanding that may seem at odds with each other are quite compatible and mutually reinforcing. Also teacher's deep knowledge in mathematics is extremely important as his/her knowledge in pedagogy.

• 대한수학교육학회지:학교수학
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• 제15권2호
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• pp.353-367
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• 2013

본 연구는 한 예비교사의 교수 자료 분석 및 개발 사례를 기호학적 관점에서 분석하였다. 수학 교과서를 기호의 표현체로, 학생들이 배워야 하는 단위 변환 내용을 대상체로 볼 때, 예비교사의 교과서 분석은 교과 내용 지식과 학생들의 이해라는 측면에서 다양한 해석체가 되었다. 이에 따라 교사의 교수 자료 분석은 한 가지 해석이 이루어지는 것은 아님을 알 수 있었으며, 본 연구는 이를 기호 공간에서 설명하였다. 그리고 예비교사가 교수 자료를 도해로 구성했을 때 수업을 염두에 둔 실험과 반성의 단계에서 예비교사의 추상적 연역이 진행되었음을 알 수 있었다. 본 연구는 예비교사의 사고 과정을 기호학을 이용하여 분석할 수 있었다는 데 의의를 가지며, 기호학을 활용한 수학교육분야의 연구가 다방면에서 활용될 가능성을 보여주었다.

• 대한수학교육학회지:수학교육학연구
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• 제24권3호
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• pp.311-331
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• 2014

예비교사들의 정의에 대한 도구적인 교수학적 내용지식을 관계적인 교수학적 내용 지식으로 변화하도록 하기 위하여, Kinach의 인지전략을 반영한 교수과제를 단계적으로 제시하였다. 연구자는 먼저 예비교사들이 '정의'와 '정의를 가르친다는 것'을 어떻게 이해하는지를 확인하였으며, 예비교사들의 통념에 도전함으로서 정의의 재발명이라는 새로운 교수방법을 포용할 수 있는 동인을 부여하였다. 예비교사의 PCK '성장' 과정은, 정의의 교수법에 대한 백지상태의 PCK를 수학교육이론으로 채우는 것이 아니라, 도구적 PCK를 확인하고 도전하며 변화 및 확장하였던 정반합(正反合)적 과정이었다. 이와 같은 사례는 교사의 지식 성장과 교사교육의 방법론에 대한 새로운 방향을 모색하는 데 기여할 수 있을 것이다.

• 한국수학교육학회지시리즈A:수학교육
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• 제45권4호
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• pp.381-406
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• 2006

This work aims to investigate mathematics teachers' knowledge and belief on the high school probability and statistics. For this aim, two research questions are estabilished as follows. (1) How is mathematics teachers' knowledge on the main contents of the high school probability and statistics in the 7th mathematics curriculum? (2) What is mathematics teachers' belief on the high school probability and statistics? Survey and interviews were carried out to answer the above research questions. Subjects of the survey were 2 7mathematics teachers who were answered to questionnaire. Among them, 3 volunteers were chosen by provinces for in-depth interview. Research findings in mathematics teacher's knowledge are as follows. Firstly, mathematics teachers do not have much of mathematical knowledge on the newly added and changed contents of the high school probability and statistics in the 7th mathematics curriculum. Secondly, mathematics teachers do not change their teaching-learning method for probability and statistics. Thirdly, many teachers think that the use of technology and reconstruction of the textbooks are required in teaching and learning of the high school probability and statistics. But, they stick on their own way. Research findings in mathematics teachers' belief are as follows. Firstly, many mathematics teachers view the nature of statistics as a branch of the applied mathematics and put the value of high school probability and statistics on the practical usefulness, Secondly, many mathematics teachers think that understanding concepts and improving problem solving ability are the best method of the teaching and learning. Thirdly, many mathematics teachers think that high school probability and statistics textbooks should cause motivations and interests in order not to give up studying probability and statistics. It is expected that the above findings can be used to change teachers' teaching and learning methods and to improve teachers training program.

• 한국수학교육학회지시리즈A:수학교육
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• 제45권2호
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• pp.177-189
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• 2006

This study focuses on the analysis of prospective elementary teachers' representation of trapezoid area and teacher educator's reflecting in the context of a mathematics course. In this study, I use my own teaching and classroom of prospective elementary teachers as the site for investigation. 1 examine the ways in which my own pedagogical content knowledge as a teacher educator influence and influenced by my work with students. Data for the study is provided by audiotape of class proceeding. Episode describes the ways in which the mathematics was presented with respect to the development and use of representation, and centers around trapezoid area. The episode deals with my gaining a deeper understanding of different types of representations-symbolic, visual, and language. In conclusion, I present two major finding of this study. First, Each representation influences mutually. Prospective elementary teachers reasoned visual representation from symbolic and language. And converse is true. Second, Teacher educator should be prepared proper mathematical language through teaching and learning with his students.

• 한국과학교육학회지
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• 제32권8호
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• pp.1356-1366
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• 2012

As the recent demand for human resources in science, technology, engineering, and mathematics (STEM), the development of professional STEM teacher is called worldwide. It is becoming a critical need in teacher education in order to educate student teachers, and prepare pre-service and beginning teachers for high quality of teaching competency. To promote the competency for $21^{st}$ century STEM teachers, the epistemology of technological pedagogical content knowledge (TPACK) is currently considered as the essential qualities of knowledge for highly qualified teachers. The aim of this study is explore the effect of case-based learning approach on TPACK competency of pre-service STEM teachers. In order to develop the pre-service teachers' competency regarding effective integration of technologies into teaching specific content areas, a series of innovative case study teaching in science and mathematics was presented to 43 participants of pre-service physics, chemistry, biology, mathematics, and computer teachers during a course of information and communication technology (ICT) in Education at Khon Kaen University, Thailand. After finishing a case presentation, the pre-service teachers were encouraged into a forum of critical open discussion by considering the potential impact of the case and the TPACK framework. They were investigated instructional design competency of using ICT tools into student learning process and their personal beliefs about ICT in educational process both before and after. The participant's reactions and learning was evaluated by using a self-reported questionnaire and an implementation log of content-specific learning process design, respectively. Results showed a change of their beliefs and the transformation of their TPACK competency in STEM teaching. In an effort to better serve the needs of high quality STEM teachers, the results of this study illustrated that the competency of TPACK could be particularly considered as a core attributes for future STEM teachers. By the way, case-based learning approach can play an effective part in preparing and professing the TPACK competency for STEM teachers.