• Journal of Educational Research in Mathematics
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• v.17 no.3
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• pp.295-308
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• 2007

The purpose of this paper was to investigate the pedagogical content knowledge of a middle school mathematics teacher manifested in his mathematics instruction by identifying the components of the pedagogical content knowledge of the teacher. For the purpose of the study, I conducted an interpretive case study by collecting qualitative data. The results showed that the pedagogical content knowledge of the teacher was characterized by: (a) knowledge of mathematics including connection among topics and various ways of solving problems; (b) knowledge of students' understanding involving students' misconceptions, common errors, difficulties, and confusions; and (c) knowledge of pedagogy consisting of his efforts to motivate his students by providing realistic applications of mathematical topics and his use of materials.

• Journal of Educational Research in Mathematics
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• v.24 no.3
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• pp.311-331
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• 2014

For preservice teachers' instrumental-to-relational pedagogical content knowledge transformations, this research designed several didactical tasks based on Kinach's cognitive strategies. The researcher identified preservice teachers' understanding about what is a definition and how to teach it. By challenging their fixed ideas about definitions, the researcher could motivate them to embrace the new teaching approach which guides reinvention of definitions. The PCK development was not the simple process of filling their tabular rasa PCK with theories of mathematics education, but the dialectical process of identifying, challenging, changing and extending preservice teachers' existent PCK. This research will contribute to explore new directions of mathematics teachers' PCK development and the method of teacher education.

• Journal of Korean Home Economics Education Association
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• v.29 no.1
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• pp.57-70
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• 2017

The purpose of this study was to examine the pedagogical content knowledge(PCK) and teaching efficacy levels of prospective Home Economics teachers. Also of interest were the relationship between PCK and teaching efficacy, as well as the personal factors that influence PCK and teaching efficacy. A survey was administered to students majoring in Home Economics in colleges of education or graduate schools of education in South Korea, and a total of 202 complete responses were analyzed. The prospective Home Economics teachers showed moderately low levels of PCK and teaching efficacy. Among the PCK subcategories, the mean score for content knowledge was the highest, those for expression knowledge and environmental situation knowledge were the lowest. Expression knowledge and content knowledge showed significant effects on teaching self-efficacy, and expression knowledge and environmental situation knowledge on teaching result expectation. As for students' personal characteristics, years in college showed significant effect: Sophomores were the highest in PCK and teaching efficacy levels. Also, those who plan to become Home Economics teachers showed significantly lower levels of PCK and teaching efficacy perception than those who do not. Besides, the more basic required courses they took, the lower their perception of PCK or teaching efficacy. This study suggests that teacher education programs should develop a program that can enhance prospective teachers' teaching efficacy by providing advice and assistance to those students who plan to become teachers, and more hands-on opportunities to practice teaching.

• Journal of Educational Research in Mathematics
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• v.20 no.3
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• pp.357-371
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• 2010

This study aimed to investigate how two eighth-grade mathematics teachers' pedagogical content knowledge is manifested in their classroom instruction. A case study was conducted for the study. The results revealed similarities and differences in the teachers' knowledge manifested in their mathematics classrooms and that the two teachers had slightly different structures of pedagogical content knowledge. One teacher is more dependent on his knowledge of mathematics and knowledge of students' understanding and the other teacher on her knowledge of instructional process and, to a lesser extent, knowledge of mathematics.

• Journal of the Korean School Mathematics Society
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• v.15 no.1
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• pp.27-51
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• 2012

This paper analyzed the pedagogical content knowledge (PCK) presented in three novice teachers' mathematics instruction. PCK was analyzed in terms of the knowledge of mathematics content, the knowledge of students' understanding, and the knowledge of teaching methods. Teacher A executed a concept-oriented instruction with manipulative materials because she had difficulties in learning mathematics during her childhood. Teacher B attempted to implement an inquiry-centered instruction in the lesson of looking for the area of a trapezoid. Teacher C focused on the real-life connection to mathematics instruction. There were substantial differences among the teachers' PCK revealed in mathematics teaching, depending on their instructional goals. The detailed analyses of three teachers' teaching in terms of their PCK will give rise to the issues and suggestions of professional development for beginning elementary school teachers in mathematics teaching.

• 한국정보교육학회:학술대회논문집
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• 2007.08a
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• pp.71-75
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• 2007

오늘날 지능형 교수 시스템은 과거와는 달리 전문영역 지식, 학습자 지식과 융통적인 개별 학습과 개인교수를 지원하기 위한 교수 전략에 대한 지식이 사용되고 있다. 학습자들이 배웠던 내용이 무엇인지를 설명하고 가르칠 도메인 지식을 전문영역 지식으로 표현한다. 교수법 모듈은 학습을 제어하거나 가르치기 위한 모든 결정을 한다. 학생 모형은 학습자의 지식을 기술하고 학습자 개개인에 대한 특정한 정보를 저장한다. 본 논문에서는 지능형 교수 시스템의 구성 요소인 학습자 모형의 지식을 기존의 인공지능에서의 지식 표현 기법인 생성 시스템의 절차 지식을 온톨로지를 사용하여 설계하였다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2015.07a
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• pp.133-135
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• 2015

본 연구에서는 현재와 미래사회의 핵심역량이 될 컴퓨팅 사고력을 학생들에게 가르치기 위한 정보 교사의 교수내용지식에 어떠한 특성이 있는지를 탐구하였다. 이전의 컴퓨터 교과는 일상적인 컴퓨터 기능을 가르치는데 집중하여 교사의 교수내용지식도 기능 전수에 큰 목적을 두고 있었다. 새로이 개정된 정보 교과는 컴퓨터 과학의 원리와 개념에 대해 학생들이 이해할 수 있는 교육방법에 대한 지식을 가져야 하고, 소프트웨어의 활용 및 소프트웨어 제작에 대한 능력과 교육 방법 또한 함께 가지고 있어야 한다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2016.01a
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• pp.263-264
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• 2016

본 연구에서는 국내 정보 교사가 가지고 있는 교사 전문성의 특성에 대해 고찰하였다. 교사가 가져야 하는 전문성의 여러 종류 중 인지적 영역의 전문성은 학생 성취에 중요한 역할을 담당하기 때문에 가장 중요한 부분으로 볼 수 있다. 교사가 가지고 있는 인지적 영역의 전문성을 교과에 대한 지식, 일반적 교육학 지식, 교수 내용 지식으로 나누어 생각할 때 정보 교사는 세 가지의 전문성을 가지고 있다. 먼저 교과의 내용이 빠르게 변하기 때문의 지식의 개정이 빠르고, 교수내용지식의 많은 부분이 컴퓨팅 도구의 활용과 이에서 발생하는 오류에 대한 내용으로 구성된다는 점이다. 또한 이러한 이유 때문에 정보 교사의 교수내용지식 또한 꾸준히 변화하게 된다.

• Journal of The Korean Association of Information Education
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• v.22 no.1
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• pp.23-32
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• 2018

This study is about in-service training structure combined digital competence and pedagogical knowledge in order to improve digital tools skill of a teacher in the school. Meanwhile domestic teacher training has been revealed low-level of applying into a teaching in the k12 school. Thus this study proposed teacher training system with focus on TPK sub-categories of TPACK. The core contents of TPK is to select appropriate digital tool for its teaching & learning. Additionally it is to select elements of teaching & learning associated with an attribute of digital tool. And this study presented modularize of 3 step such as teaching objective, teaching contents, assessment. Also we proposed that this training system should be operated with problem solving method which trainee itself compose TPK elements. And we committed quality investigation about picking up Strategies of TPK elements and the teacher training frame. The Participants concluded having a validity about TPK strategies, teacher training framework.

• Journal of the Korean School Mathematics Society
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• v.10 no.1
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• pp.129-148
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• 2007

Recent reform movement in mathematics education has focused not only on the curriculum development but also on teachers' learning or professional development. Whereas various theoretical paradigms call for different programs of professional development for teachers, one of the common emphases is on the pedagogical content knowledge [PCK] which encompasses contents and methods to teach. Against this background, this study developed comprehensive instructional materials for the purpose of fostering PCK in mathematics for elementary school teachers with 17 essential learning themes such as fraction, plane geometry, and area. Each loaming theme was first summarized on the basis of literature reviews and surveys in terms of knowledge in mathematics contents, knowledge in teaching methods, and knowledge in students' mathematical understanding and learning. Each theme was then analyzed in detail on how it was represented in the national curriculum and its concomitant textbooks along with workbooks. Finally, this report included a reconstruction of one unit in textbooks per each learning theme, followed by teaching notes and suggestions from classroom implementation. This was intended for teachers to apply what they might loam from this material to their actual mathematics instruction. Given the page limit, this paper dealt only with the learning theme of ratio.