• Journal of The Korean Association For Science Education
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• v.32 no.5
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• pp.991-1006
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• 2012

The purpose of this research is to find factors that affect high school science teachers' class compositions. In this research, we developed the class composing factor analysis framework and we observed teachers' class to figure out the class composing factors. The results from this research were as follows: First, the class composing factor was classified with 'positive motive factor' and 'negative motive factor'. It is the positive motive factor that teachers' voluntary motives operate to teacher for class compositions. It is the negative motive factor that outer demands operate to teacher for class compositions. Second, both positive and negative motive factors were shown in all the steps, which included preparing a class, progressing a class, and after a class. Also, according to the circumstances, each factor changed. Minimizing and overcoming negative motive factors will lead to positive interaction between the teacher and students. It will also increase a teachers' achievements in class and maximize the effectiveness of class. Therefore, it is expected that this will be a great help for teachers to enhance their teaching professionalism.

• Journal of The Korean Association For Science Education
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• v.39 no.2
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• pp.307-320
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• 2019

This study explores how an elementary school homeroom teacher who continued to lecture, can use diversified science teaching methods for learner-centered instruction. Using an auto-ethnographic approach over the course of a year, self-memory data, facebook diaries, class diaries, and interview data of an elementary teacher's day-to-day preparations and practice of elementary science, in the context of a Korean elementary school, were collected. The data was analyzed through cultural historical activity theory, examining how the interplay of key elements (i.e., the subject as a homeroom teacher with instructional expertise, norms, community, division of labor, tools, and goals) was characterized within and across distinct two-activity systems, and how these elements shaped the teacher's teaching methods into either lecture format or diversified teaching. The study revealed that a non-cooperative community, lack of division of labor, and norms that neglect preparation for science class were the elements that perpetuated the lecture format, and that a contradiction between goals and tools occurred in the activity system. However, these elements were able to be transformed into a cooperative community, shared labor, and norms that saved preparation time for both science class and diversified teaching methods, and those changed elements facilitated the teacher in using diversified teaching methods (e.g., experiments, subject-integrated classes, field work), thereby mitigating the contradiction. This study also discusses that diversified teaching methods can be facilitated when dealing with norms, community, and division of labor elements in an elementary school context as well as improving individual teachers' instructional expertise.

• Journal of Korean Elementary Science Education
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• v.40 no.4
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• pp.460-479
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• 2021

The crisis of the COVID-19 pandemic has caused significant changes in education systems worldwide, including in Korea. Due to COVID-19's social distancing policies, the education system was suddenly switched to distance learning, resulting in many problems in primary schools without preparation. The purpose of this study was to investigate a teacher's awareness of science education techniques, responses to issues in science classes, including inquiry activities, advantages and disadvantages, and roles after experiencing distance learning. Survey and focus interviews were conducted for primary school teachers who had previously participated in distance learning, such as online content classes and real-time interactive classes. The study findings showed three conclusions: 1) Primary school teachers conducted one-way and interactive lectures in online classes. It is vital to improve a teacher's digital literacy to improve other teaching methods such as investigation and discussion in online classes. 2) Primary school teachers acknowledged the challenges of field feedback, inquiry item preparations, and safety in inquiry activities of science classes, by providing individual experimental packages and videos and using online discussion and feedback among teacher - student and student - student interactions. 3) Primary school teachers recognized that various types of classes using IT devices and individualized learning were possible as advantages of distance learning. As for disadvantages, it was acknowledged that inquiry activities, cooperative learning, immediate feedback, and interaction among students were challenging. Furthermore, learning gaps were wider in distance learning.

• Journal of the Korean earth science society
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• v.36 no.4
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• pp.390-403
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• 2015

The purpose of this study was to explore discursive-epistemic mechanisms in high school earth science lessons. A total of 11 video recordings of earth science lessons were collected from three inservice high school teachers. The video recordings were all transcribed and analyzed by employing the discourse analysis framework used in relevant previous studies. In analysis, we identified discursive-epistemic mechanisms as functional assemblies for fulfilling particular epistemic functions in the earth science lessons. The characteristics of these mechanisms were described according to their epistemic functions. The findings of the study were compared with those of previous studies to highlight the characteristics of discursive-epistemic mechanisms in the earth science classrooms. Analyses of middle school science lessons and of science lessons in alternative forms, as well as studies using extended research methods such as indepth interviews with teachers, were suggested as implications for future research.

• 대한공업교육학회지
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• v.32 no.1
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• pp.1-32
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• 2007

The purpose of this study was to verify that the practical skill instruction of the heat treatment and the tensile strength test using the problem-based learning is more effective than the traditional skill instruction in improving the key competencies. For the study, various literature researches were reviewed intensively about problem solving process, problem -based learning, and learning principals. The process of the practical skill instruction using the problem-based learning was composed with planning, executing, testing and evaluating. Based upon the conclusion of this study, the practical skill instruction using the problem-based learning was more effective than the traditional practical skill instruction of the heat treatment and the tensile strength test in improving the key competencies.

• 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.

• Journal of the Korean Society for Library and Information Science
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• v.57 no.3
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• pp.143-161
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• 2023

The purpose of this study was to investigate whether students' creative problem-solving skills improve through project-based courses. Rather than measuring overall competencies, the focus was specifically on measuring the improvement of problem-solving skills. The study involved a literature review, the design of project-based courses, and the assessment and analysis of students' competencies before and after the courses. The results of the study are as follows: Firstly, the measurement of students' creative problem-solving skills before and after the project-based courses indicated an overall improvement in the five dimensions of problem identification, analytical thinking, flexible thinking, alternative generation, and a proactive attitude. Secondly, significant correlations were found among these five dimensions, particularly strong correlations were observed between problem identification and alternative generation, problem identification and analytical thinking, and analytical thinking and alternative generation. To generalize the findings of this study, further research is needed to apply similar approaches in different types of courses and across various universities and departments.

• Proceedings of the Korean Information Science Society Conference
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• 2001.10b
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• pp.604-606
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• 2001

현대사회가 정보화 되어감에 따라 교육분야에서 컴퓨터의 가치는 더욱 높아지고 있으며, 이러한 요구에 발맞추어 컴퓨터를 이용한 교육 기술과 구현 기술은 저작도구를 중심으로 발견하고 있다. 또한 기술공학의 발전으로 교육기회의 확대와 교육방식에 대한 새로운 패러다임을 제시되고 있으며 새로운 형태의 학습을 가능케 하고 있다. 이러한 수세에 따라 상호 작용성이 보다 강화된 원격통신 기술에 기초한 새로운 WBI의 형태가 나타나고 있다. 본 논문에서는 WBI의 기능을 통해 일률적인 WBI(Web Based Instruction)의 컨텐츠 속에서 자신의 수준에 적절하지 않는 수업을 받았던 학습자에게 수준별 학습을 통해 교수과정과 학습과정에 최대한 도움을 주고 학습자의 학습능력을 극대화시키는 효과를 기대한다. 재사용 가능한 컴포넌트와 라이브러리를 통해 쉽고 빠른 웹 개발지원이 가능한 JSP를 사용하여 운영체제에 독립적인 설계를 하며, 이를 통해 개발자의 편의를 극대화 할 수 있다. 또한 교사와 학생의 빠른 상호 작용성을 기대하며, 교수지원 학습평가(LE Loarning Evaluation) 컴포넌트를 통해 수업의 패러다임이나 교수방법을 수정해야 함을 교수에게 가시적으로 제시한다. WBI 도메인에서 교수지원을 위한 부분의 피드백과 재사용의 가능성을 제공함으로써 개발과 비용 면에서의 높은 효율성을 보장하고, WBI 수업모형의 표준화를 기대한다. 이를 통해 교수가 가지는 교수목표를 달성하는 데에 효과적인 방법을 제시한다.

• Journal of The Korean Association For Science Education
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• v.23 no.2
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• pp.144-154
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• 2003

This study investigated the common features of the best practices in the science classroom, which is the core of school education. The underlying assumption of this research is that the fulfillment of school education is possible with substantial instruction of school curricular areas. The substantial learning of any curricular area depends on each classroom lesson. Data from classroom observations in-depth interviews with teachers and a group of students, a collection of instructional materials were used to extract common characteristics of best practices implemented by 10 exemplary secondary-school science teachers. Common features of best science practices were analyzed in terms of (1)reorganization of science content, (2)pedagogical skills, (3)evaluation, and (4)teachers' efforts for professional development. Results indicated that exemplary science teachers adapted curriculum and textbook content according to students' level and learning context, were able to use a variety of instructional methods and strategies, provided cooperative and intellectually challenging learning environment, and improved their instruction based on assessment results. Also, these exemplary teachers not only improved their own classroom practices, but also participated actively in various professional community of science teachers to share their practical knowledge with their colleagues. They took an active role in teachers' in-service education.

• Journal of Science Education
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• v.39 no.1
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• pp.58-79
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• 2015

This study is to analyze the 2289 students questionnaires from 3rd to 9th grade students in order to analyze the students' perceptions change aspect by their grade about the frequency and type of students' question during various science class context. After the class contexts proposed in the questionnaire subcategorize into 19 subitems about 4 areas of class content, class pattern, class material and class process, this study examined the frequency and type of students' question during a science class by each item. The results of this study were as follows. First, the type of students' question was that the most frequent was understanding question and the second was memory question and these both types were half frequency. There was no special tendency related the change of students' question type by school year. Second, the frequency of 4th grade students' question was the highest among other school year students and the frequency of students' question was lowered by the higher school year. The change of students' question by school year was the biggest between 3rd and 4th grade. The class strategies for improving the class effect reflect that the various and active students' question by class context and school year stimulates students' thinking and also builds up the active class environment.