• Journal of Elementary Mathematics Education in Korea
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• v.17 no.3
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• pp.457-481
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• 2013

Since the importance of teacher knowledge in teaching mathematics has been emphasized, there have been many studies exploring the nature or characteristics of such knowledge. However, there has been lack of research on the tools of investigating teacher knowledge. Given this background, this study explored teachers' knowledge of fraction lessons using classroom video analysis. The analyses of this study showed that knowledge of teaching methods was activated better than that of student thinking or mathematical content. Knowledge of fraction operation was activated better than that of fraction concept. The degree by which teacher knowledge was activated depended on the characteristics of the video clips used in the study. This paper raised some issues about teachers' knowledge of fraction lessons and suggested classroom video analysis as an alternative tool to measure teacher knowledge in the Korean context.

• Proceedings of the Korea Multimedia Society Conference
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• 2002.11b
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• pp.677-680
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• 2002

요즘 원격 교육의 필요성으로 인하여 교사 연수에 있어서도 기존 출석 연수와 병행하여 원격연수가 증가하는 추세에 있다. 그러나 현재 이루어지고 있는 원격 연수의 상당 부분은 실제 현장 교사들이 원하고 교사 연수의 핵심인 교수법 향상에 대한 것보다는 교과에 대한 지식이나 기능위주로 시행되고 있는 것이 사실이다. 교사 연수의 궁극적인 목적인 교수법 향상을 위해서는 연수생들이 경험이 풍부하고 교수법이 뛰어난 교사가 실제 수업하는 것을 보고 동료 교사들끼리 서로 충분히 토의를 거치고 배우는 형태의 연수가 유용할 것이다. 그러나 시간, 인원, 경비 등의 문제로 실제 그렇게 하기 어려우므로, 교수-학습 지도안과 동기화된 동영상 중심으로 이루어진 원격 연수 시스템을 구축하는 것이 좋을 것이다. 본 연구에서는 동기화 동영상 저작 도구를 개발하고 이를 활용하여 원격 연수 시스템을 구축해서 교사들의 교수법 향상에 많은 도움이 되리라 기대한다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2021.07a
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• pp.443-446
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• 2021

이 연구의 목적은 온라인 상에서 수행된 실습 수업 방식을 분석하는데 있다. 이를 위해 연구자는 예비 교사를 대상으로 '전기 자동차 만들기'수업 주제로 실습 수업을 설계하였으며, 온라인 동영상 강의 컨텐츠 3편을 제작하였다. 동영상 강의 컨텐츠 제작을 위해 교수용 홈페이지 제작, 수업에서 사용할 동영상 제작, 과거 촬영하거나 제작해 두었던 동영상 준비, 실습 재료 준비, 실습 활동 관련 교과서 준비 등 다양한 교수학습자료를 사전에 준비하였다. 동영상 강의 컨텐츠는 CODTRA 분석 방법을 이용 하였으며, 분석 코드는 '동영상에서 제시된 교수학습자료'와 '교수자가 행하고 있는 상태'이었다. 분석 결과는 CODTRA 다이어그램에 의해 분석 코드를 시간에 따라 도식화하여 도시하였다. 이 연구 결과는 중등학교의 기술 교과나 공업계 교과에서 온라인 실습 수업을 위한 동영상 강의 컨텐츠를 제작하고자 하는 교수자에게 참고할 수 있는 자료로 활용될 수 있을 것이다.

• Journal of Science Education
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• v.37 no.1
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• pp.87-116
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• 2013

The purpose of this study was to investigate science teachers and secondary students' perception of pseudoscience. Subjects were 491 secondary students and 65 science teachers who enrolled in secondary schools located in Korea. The instrument of this study was a questionnaire which consisted of 33 items on 7 domains: fortune and fate, parapsychology, spiritual beings, alternative medicine, UFO and mystery, creationism, and introduction of the pseudoscience concepts in science education. The results suggested that it is necessary to develop science education programs focused on the pseudoscience for secondary students and science teachers. Media such as television, movie, and books should provide a well-organised scientific programs.

• Journal of the Korea Society of Computer and Information
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• v.28 no.10
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• pp.291-300
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• 2023

In this paper, we propose a plan for prospective early childhood teachers to plan, design, and produce and the results of operating a teaching model. To this end, we will identify video content for each age and video content of various topics and video playback time required by early childhood education sites, actively collect opinions from workers currently in early childhood education institutions, and suggest ways to develop on-site video content in the university curriculum. This requires prospective early childhood teachers to improve their self-understanding capabilities, community capabilities, and creative convergence capabilities, including digital capabilities. Through this, we intend to contribute to fostering smart early childhood teachers and creating a kindergarten activity and environment applying the latest video technology.

• Journal of The Korean Association For Science Education
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• v.40 no.6
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• pp.595-609
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• 2020

The purpose of this study is to analyze the experiences of teachers who participated in the development of online science class videos in the context of covid-19, their perception of online science class, and the characteristics of the online science class content developed by teachers. A survey and interviews were conducted with ten elementary school teachers who made online science class videos themselves. Also the characteristics of the online science class were investigated by analyzing the online science class video produced by the participants. As a result, participants in the study recognized the lack of production time, difficulty in filming and editing, concerns over misconceptions, the problem of solving copyrights for existing materials, and the burden of external disclosure. Although it was a teacher who had experience producing online science class video contents, no research participants actively answered the merits of online science class. On the other hand, the study participants cited that the shortcomings of online science classes were that students had fewer opportunities for inquiry and lack of communication or interaction. In particular, these shortcomings were thought to have a great influence on the quality of online science classes, especially in making inquiry classes difficult. Some teachers took a negative view that online science classes could not completely replace face-to-face classes. However, if multiple teachers are presented with supplementary teaching activities that complement the content-based online teaching method, the method of combining online science classes and face-to-face classes is not. Through the analysis of the contents of the online science class, the introduction and arrangement steps of the online science class were similar to the process of the face-to-face science class, but the inquiry step and the conceptual explanation step showed a big difference from the face-to-face science class.

• Proceedings of the Korea Information Processing Society Conference
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• 2003.11a
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• pp.265-268
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• 2003

수업의 핵심이라고 할 수 있는 교사의 교수법 향상을 위해서는 실제 수업을 잘하는 사람의 수업 장면과 교수 학습 지도안을 보고 동료교사 및 전문가들과 같이 수업에 대해서 같이 토론하는 것이 좋을 것이다. 그러나 현장의 교사들에게는 실제 그러한 참관 기회가 많지 않을뿐만 아니라 참관 및 토론의 환경도 충분히 제공되지 않고 있다. 이러한 문제점을 해결하기 위한 방법으로 실제 교수법이 뛰어나 교사의 수업 장면을 동영상으로 제작하고, 이 동영상과 교수 학습 지도안을 동기화시킨 전자 지도안을 만들어 현장 교사들에게 제공하는 것이 좋을 것이다. 본 연구에서는 교수법 향상을 위해 저자 지도안 재작 도구의 프로토타입을 개발하였다.

• Journal of The Korean Association For Science Education
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• v.30 no.1
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• pp.107-123
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• 2010

This study investigated the content and the effect of peer discussion about classroom practices on their science teaching. Participants included three science teachers with chemistry backgrounds in middle and high schools. Each of them had their classes videotaped and observed the footage as well as discussed the lessons together. The teachers had six meetings on 15 recorded lessons including one meeting beforehand. Teachers' discussions were also audio-taped and the data was transcribed. Teachers extensively discussed their lessons not only in terms of instructional strategies and scientific concepts but also the curriculum organization and teaching goals. Analysis of video-recorded lessons showed that instructional strategies were changed partially, but the aspects of curriculum organization in relation to teaching goals were not changed. Analysis of the recorded data revealed that teachers recognized the problems in their science teaching and considered the practical alternative ideas suggested by peers, but teachers proposed the necessity of experience to practice in their class. The study shows that observing and discussing each other's classes is one possible way to improve the class. Implications about teaching improvement for other teachers were discussed.

• Journal of the Korean earth science society
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• v.36 no.3
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• pp.258-279
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• 2015

The purpose of this study was to analyze the change of secondary earth science teachers' knowledge about the currents of the East Sea through drawing of a schematic map of oceanic currents. For this purpose, thirty two earth science teachers participated in the six-hour long training of learning and practice related to ocean current schematic map. The teacher participants performed drawing of the ocean current schematic map of the East Sea in three different phases, i.e.; pre-, post-, and delayed-post phase. In addition, all the maps conducted by participants were converted to digitalized image data. Detailed analysis were performed to investigate participating teachers' knowledge about the currents of the East Sea. Findings are as follows: First, the teacher participants have background knowledge about the ocean current map, but it reveals an incorrect knowledge about some concepts. Second, after teacher training, teachers' knowledge increased about the East Sea's currents, while a decrease was found in the differences between individual teachers' knowledge. This pattern was more evident in the delayed-post phase of drawing than in the post-phase occurred immediately after training. Third, the teacher participants were strongly aware of the need to improve the ocean current schematic map of the East Sea in science textbook in terms of scientific knowledge. In addition, they showed a high level of satisfaction about teacher training because they perceived that it was meaningful in various aspects; recognizing the importance of content knowledge and conjunction with instructional strategies, the needs of secondary science curriculum, and recognition of the nature of scientific knowledge. The results imply that teachers' subject matter knowledge plays a significant role to make science teaching effective.

• Communications of Mathematical Education
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• v.35 no.4
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• pp.377-411
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• 2021

This study aims to explore central and peripheral beliefs of mathematics teachers in the context of teaching and learning. For this purpose, this study analyzed teacher noticing of 8 mathematics teachers who are in-service in terms of mathematical beliefs using video-clips of math lessons. When the teachers in the video-clips seemed to have a teaching and learning problem, teachers who adopt noticing critized the classroom situation by reflecting his or her own mathematical beliefs and suggested alternatives. In addition, through noticing analysis, teachers' mathematical beliefs reflected in specific topics such as student participation in teaching and learning were compared to reveal their individual central and peripheral beliefs. Through these research results, this study proposed a model that extracts the central and peripheral beliefs of math teachers from the constraints of the teaching and learning context using noticing analysis. Additionally, it was possible to observe the teacher decision-making and expertise of mathematics teachers.