• Communications of Mathematical Education
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• v.14
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• pp.273-295
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• 2001

통계는 연역적 사고를 강조하는 수학의 다른 영역과 달리 귀납적 추론과 직관적 사고를 요구한다. 따라서 학교 수업에서 학생들이 실제적인 상황을 모델링 할 수 있도록 하며, 주어진 상황에서 자료를 올바르게 산출하고 분석 할 수 있도록 적절한 지도 방법이 필요하다. 그렇지만 학교 수업은 대다수 알고리즘 연습 위주의 통계 학습-지도로 통계적 사고 교육이 제대로 이루어지지 못하고 있다. 이로 인해 학생들은 형식적인 통계 처리에는 익숙하지만 통계 교육의 궁극적 목적인 변이성과 자료를 현명하게 다루는 능력이 부족하다. 본고에서는 피상적인 기계적 계산위주의 통계교육에서 실제적인 자료를 수집하고, 이를 적절히 가공 처리하여 정보의 가치를 높일 수 있는 통계 지도 방향을 탐색해 보고자 한다.

• Journal of Convergence for Information Technology
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• v.10 no.4
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• pp.89-97
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• 2020

The study aims to enhance the understanding of Korean learners concerning globalization and localization of educational contents. The study explores power distance in school, and examines its effects on instructor-student interaction, help-seeking, critical thinking, and convergence thinking. Four hundred sixteen students participated. Power distance in school is analyzed as aspects of course driver, instructor's role, and instructor-student equality. It is found that students have tendencies for large power distance and it has significant effects on instructor-student interaction, help-seeking, critical thinking, and convergence thinking. Considerations to localize international educational contents for Korean learners are discussed. Lastly, study limitations and future research direction are addressed.

• Proceedings of the KAIS Fall Conference
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• 2010.05b
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• pp.1217-1220
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• 2010

본 연구는 초등학생들의 안전의식이 사고유형 위험인식에 미치는 영향에 대한 관련성을 알아보고자 시도하였다. 2009년 6월 25일부터 7월 15일까지 J도 소재 J시 K시 4개교에 재학하는 초등학생 378명에 대하여 실시하였다. 통계처리는 SPSS WIN 12.0 Version 프로그램을 사용하였으며, 통계적 유의성은 p<.05로 설정하였다. 안전실태의 특성의 변수들과 안전의식, 사고유형 위험인식 간의 상관관계는 안전의식은 외상사고 위험인식(r=.179, p<.01)과 환경사고 위험인식(r=.104, p<.05)에 양의 상관관계를 보였다. 사고유형 위험인식 전체에 대해서 살펴보면 1년 내 안전 교육($\beta$=.139, t=2.654, p<.01)과 교통안전의식($\beta$=.172, t=2.714, p<.01)이 사고유형 위험인식에 유의한 영향을 주는 것으로 나타났다.

• Journal of The Korean Association For Science Education
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• v.26 no.4
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• pp.546-558
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• 2006

The purpose of this study was to identify heuristically how abduction was used in a context of solving an earth-environmental problem. Thirty two groups of participants with different institutional backgrounds, i,e., inservice earth science teachers, preservice science teachers, and high school students, solved an open-ended earth-environmental problem and produced group texts in which their ways of solving the problem were written, The inferential processes in the texts were rearranged according to the syllogistic form of abduction and then analyzed iteratively so as to find thinking strategies used in the abductive reasoning. The result showed that abduction was employed in the process of solving the earth-environmental problem and that several thinking strategies were used for inferring rules from which abductive conclusions were drawn. The strategies found included data reconstruction, chained abduction, adapting novel information, model construction and manipulation, causal combination, elimination, case-based analogy, and existential strategy. It was suggested that abductive problems could be used to enhance students' thinking abilities and their understanding of the nature of earth science and earth-environmental problems.

• Journal of Science Education
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• v.45 no.3
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• pp.275-291
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• 2021

The purpose of this study is to analyze the level and characteristics of system thinking of middle and high school students on cycle of matter in the Earth system considering the impact of human activities on the cycle. For this purpose, we developed items for assessment and assessment rubric through the analysis of 2015 revised curriculum and applying systems thinking, respectively. Middle and high school students who participated in the Korea Earth Science Olympiad were the subjects of this study. The level of system thinking was determined using the assessment rubric for student responses collected using items for assessment. The characteristics of system thinking were identified using word analysis. Based on these, the improvement of the curriculum considering the impact of human activities was discussed. The results of the study are as follows: first, the system thinking level of most secondary school students was low in identifying or classifying system elements for matter cycle, and high levels, such as system relationship or generalization of patterns, were found to be relatively small. It was found that students had a higher level of system thinking in the carbon cycle than in the water cycle. Second, in terms of the characteristics of system thinking about water cycle, water was recognized as a major system element and mainly related with evaporation between atmosphere and other system elements. Whereas, in the carbon cycle, carbon dioxide was regarded as a major system element, and photosynthesis and respiration were represented in relation with the biosphere. Third, for education considering the impact of human activities on the matter cycle in the Earth system, it is proposed improving the curriculum considering the socio-ecological system by extending the existing earth system.

• Communications of Mathematical Education
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• v.35 no.3
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• pp.295-322
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• 2021

This study was conducted for one semester through one group pretest-posttest design with 49 first-year middle school students to explore the effects of mathematics-centered STEAM class experiences on students' mathematical modeling abilities. The main results of this study are as follows: First, the results of the pre and post-mathematical modeling ability tests showed that the average score of posttest was improved compared to the pretest, and that the experiences of mathematics-centered STEAM classes provided in this study had a positive effect on improving the mathematical modeling ability of first-year middle school students. Second, STEAM classes were more effective in solving mathematical modeling problems that require students' creative and divergent thinking. Third, the content analysis of student responses for each subquestion showed that STEAM classes were especially more helpful in activating students' mathematical model construction and validating steps.

• Journal of The Korean Association For Science Education
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• v.18 no.1
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• pp.1-17
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• 1998

What does mean the statement that scientific reasoning is logical? In this study, we clarify the logical structure of the scientific explanation, prediction and the process of hypothesis testing. To simplify and identify the structure of scientific explanations and prediction more clearly, we used syllogism and presented various concrete examples. Especially, we showed that the logical structure of scientific explanation was well reflected in dynamics. Based on this analysis, it can be said that the deficit of students' understanding of dynamics is because that many scientific activities are focused on prediction rather than explanation. To explain the process of hypothesis testing, we reinterpreted the Wason's selection task as two stages: the process of prediction of experimental phenomena based on the presented hypothesis, and the process of the hypothesis testing based on the predicted experimental phenomena. And we suggested the reason of the logical fallacy of 'affirming the consequent' in science was because that many scientific relationships between the variables is one-to-one relationship, and compared this suggestion with the Lawon's multiple hypothesis theory. To check out the effect of content on the deductive reasoning, we reviewed some researches about psychology and psychology of science. And to understand the role of deductive reasoning in student's scientific activities, we reviewed researches about the analysis of students' responses in the task of conceptual change or evaluation of evidence and so on.

• Communications of Mathematical Education
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• v.11
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• pp.127-144
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• 2001

본 연구는 확률의 다양한 의미를 반영한 초등학교 확률 학습 프로그램을 개발하고, 개발된 프로그램의 적용 가능성을 알아보는데 목적을 두고 있다. 먼저 확률의 다양한 의미를 반영한 초등학교 확률 학습프로그램을 개발하기 위하여, 프로그램의 기본 방향을 설정하고, 확률의 다양한 의미를 반영하기 위한 교수 방법을 마련하였다. 개발된 프로그램은 초등학교 6학년 한 단원 분량인 7차시로 이루어져 있다. 다음으로 프로그램 시행 전에 실시한 검사에서 확률적 사고 수준이 상 ${\cdot}$ 중 ${\cdot}$ 하인 것으로 나타난 세 명의 학생을 연구 대상으로 개발된 프로그램을 시행하였다. 프로그램 적용 전 ${\cdot}$ 후에 실시한 지필 평가와 비디오 카메라로 녹음한 수업 내용과 학생들의 학습지를 검토하여 프로그램 적용 전, 1${\sim}$7 각 차시 후, 프로그램 적용 후의 시기로 나누어 분석한 결과, 세 학생 모두 확률적 사고 수준이 가장 높은 수준인 4수준으로 발전하였다. 본 연구의 결과, 확률을 이론적 의미 뿐 아니라 경험적 ${\cdot}$ 통계적 의미로 접근하면 초등학교 학생들도 확률 개념을 학습할 수 있었다. 따라서 확률을 다양한 관점으로 접근한다면, 초등학교에서도 독립성, 조건부 확률 같은 개념을 유의미하게 학습할 수 있을 것이다.

• The Mathematical Education
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• v.60 no.1
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• pp.77-110
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• 2021

In this study, a student participation-centered class based on student mathematical thinking as a the meaningful subject was called a student thinking-based math class. And as a way to support these classes, I paid attention to lesson design. For student thinking-based mathematics classes, it is necessary not only to anticipate student thinking and teacher feedback, but also to plan in advance how to properly arrange and connect expected student responses. The student thinking-based lesson design template proposed in this study is a modified three-step(introduction, main topic, summary) lesson design template. The reason for revising the existing design template is that it has limitation that it cannot focus on mathematical thinking. Using the conceptual framework of student thinking-based mathematics lesson as a lens, the difference between the three-step lesson design prepared by pre-service teachers and the students' thinking-based lesson design prepared by the same pre-service teachers was analyzed. As a result of planning lessons using the student thinking-based lesson design, more attention was paid to the cognitive and social engagement of students. In addition, emphasis was placed in the role of teachers as formative facilitator. This study is of significant in that it recognizes the importance of classes focusing on students' mathematical thinking and provides tools to plan math classes based on students' thinking.

• 한국정보교육학회:학술대회논문집
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• 2004.01a
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• pp.260-267
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• 2004

언론보도에 따르면 우리나라 어린이들의 사망률이 인구 10만명당 25.6명으로 OECD회원국 가운데 가장 높은 것으로 나타나고 있다. 모든 위험상황으로부터 최우선적으로 보호되어야 할 대상인 어린이들이 우리 사회에서는 상당한 위험에 노출되어 있는 것이 현실이다. 지난 30년간의 급속한 산업화로 인해 물질의 풍요는 누렸지만 그 이면에 나타난 각종 안전사고는 점차 증가 추세이며 더욱 늘어날 것으로 예상되고 있다. 어린이의 귀중한 생명과 재산을 보호하기 위해서는 무엇보다도 어릴적부터 철저한 안전교육을 통한 안전 습관화와 함께 범 국가적인 차원의 안전대책이 마련되어야 할 것이다. 이에 우리나라도 올해를 어린이 안전 원년의 해로 정하여 각종 안전대책을 마련하고 있으며 학교안전 교육의 중요성이 부각되면서 안전교육을 위한 프로그램의 개발 보급이 요구되고 있다. 이전의 안전교육용 프로그램이 한국산업안전공단, 교통안전공단 둥 주로 외부기관에 의해 제작되어 초등학교 현장에 직접 투입하기에는 적절치 않아 초등학생들의 발달단계와 교육과정 분석을 통해 초등학교 학생들의 수준에 알맞은 내용으로 재구성하여 본 프로그램을 설계하게 되었다.