• Journal of The Korean Association For Science Education
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• v.22 no.2
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• pp.215-229
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• 2002

This study is to analyze the contents related to 'state of water', 'state change of water', and 'conditions of state change' in K-12 science textbooks. For this, we analyzed textbooks based on the 5th kindergarten curriculum, the 6th elementary school science curriculum and the 6th middle school science curriculum. Findings show that some of the contents are designed well by topical sequencing or by spiral sequencing. But others have some problems based on topical sequencing and spiral sequencing. Generally, the contents are represented in the order of Perception of phenomena with senses level, Macroscopic understanding level, Understanding of scientific term level, Microscopic understanding level by grade. But the state change contents related to solidification and melting, and conditions of state change contents related to heat, temperature, wind, and humidity are not represented in the level of Microscopic understanding. The contents of state change and conditions related to heat and wind are not represented in the level of scientific term also.

• Journal of Convergence Society for SMB
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• v.6 no.4
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• pp.45-50
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• 2016

This research suggests a method to contribute to the perfect execution of duty in prospective information warfare by inspecting network-based warfare, in which its basic concepts and efficient management plans are provided; it is especially important, due to growing focus on information warfare caused by sudden improvements on information technology which affects not only civil matters but international military affairs as well. For this purpose, this research scrutinizes on the chronological organization of warfare traits during the information age, and information-warfare execution, as well as its effects, thereby providing proper management plans for network-based warfare.

• Journal of The Korean Association For Science Education
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• v.21 no.3
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• pp.566-579
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• 2001

The purpose of this study was to investigate students' actual thinking processes during conceptual change about free fall. To do this, middle school students were made an interview designed based on a teaching model using thought experiment. From the study, it was found that strategy for generating cognitive conflict by suggesting opposite views was not effective. However, many students changed their prior conceptions when new explanatory hypothesis, which explained why heavy object and light object fall equally, was introduced. And finally, even though students realized that the changed idea did not accord with the real world, they could easily solve that problem by observing demonstration designed to show the effect of air resistance.

• Korean Security Journal
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• no.21
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• pp.95-120
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• 2009

This study was designed to investigate the relationship between the stages of exercise behavior change and physical self-concept and self-efficacy of security employees in hotel casinos. The sampling was drawn from employees at 8 casinos which had more than 30 employees. Participants were selected by convenience sampling method and they completed questionnaires about Physical Self-Concept and Self- Efficacy by self-administration method under supervision of trained researchers SPSS 16.0 (Statistical Package for the Social Science) was used for data analysis in the present study. Reliability and validity were examined for the present study. The principle component factor analysis and varimax rotation were used for the present study. Eigen value 1.0 was the criterion for selecting factors. Chi-square (X) 2 test was utilized for measuring the difference in gender and types of job duties at the stages of exercise behavior change. One-way ANOVA was employed to examine the relationship between the stages of exercise behavior change as an independent variable and physical self-concept and self-efficacy as dependent variables. The Scheffe method was used to determine mean differences of groups as a follow-up test. Multiple regression analysis was utilized to test the difference of physical self-concept as dependent variable and self-efficacy as independent variable. To verify hypothesis for the study, a statistical significance level of $\alpha$=.05 was used. The results were as follow: first, there were differences found for gender and types of job responsibilities in the stages of exercise behavior change. Secondly, as security employees progressed through the stages of exercise behavior change, their physical self-concept and self-efficacy improved. Finally, physical activity and body fat had significant main effects on self-efficacy.

• Journal of Science Education
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• v.34 no.1
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• pp.58-71
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• 2010

The purpose of this study is to categorize preconceived notions by elementary science gifted students about the reason why only one side of the moon is visible and develop an instructional module to correct these notions scientifically. The effectiveness of these modules will then be tested. The participants of this study were 15 (5th and 6th grade students) from Gwangju Metropolitan City and Chonnam Province who passed a gifted student assessment test developed by J university. The student's notions about the reason only one side of the moon is visible were assessed through questionnaires, interviews, and reenactments. Instructional modules to minimize these notions were developed and then improved upon by class reenactments. And then these modules were used to teach a real class with cameras recording the students. Protocols were analyzed using this footage, and emphasis was placed on how the developed class module changed student's misconceptions. The instructional module developed in this study was: student conception assessment writing materials exploration activity stage 1 (moon's orbit) exploration activity stage 2 (moon's rotation) - exploration activity stage 3 (moon's orbit and rotation) - exploration activity stage 4 (verbalizing the moon's orbit and rotation) - exploration activity stage 5 (thinking about moon movement considering earth's rotation - exploration activity stage 6 (relating the earth and moon's movement) and verifying student conception change. An important conclusion of this study was that all 15 students had misconceptions that could be divided into categories A, B, and C. Category A could be separated with more specifics into A-1 and A-2, and C into C-1 and C-2. After the instructional module was utilized, the student categories show positive change in the following stages: Category A at exploration activity stage 1 and 2, Category B at exploration activity stage 3, Category C-1 at exploration activity stage 4 and 5, and Category C-2 at exploration activity stage 6. Category C-1 students immediately changed to Category C-2 after going through a few stages, and their misconceptions were finally corrected after going through exploration activity stage 6. The misconceptions of students in all categories were corrected scientifically after completing stage 6 education. This study proposes that a combined education of reenactments, exploration materials development, and exploration activities by stages will effectively correct misconceptions about the Earth and moon's movement.

• 한국사회복지학회:학술대회논문집
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• 2003.05a
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• pp.377-388
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• 2003

본 연구에서는 여성복지정책 개념이 갖는 지향성에 따라 노무현 정부 여성복지정책과 김대중 정부 여성복지정책을 비교함으로써 노무현 정부 여성복지정책의 성격 규명을 시도하였다. 부녀복지정책에서 여성복지정책으로 개념이 진일보한 1990년대 이후 여성복지정책은 일반 여성을 대상으로 한 정책이라는 막연한 이미지 전달을 시도하였다. 그러나 이같은 여성복지정책 개념은 여성복지정책이 추구하는 사회적 기능의 회복, 인간다운 삶 등이 무엇을 의미하는지 추상적인 나열을 하는 데 그침으로써 성차별 문제를 희석시키는 한계를 보인다. 따라서 김대중 정부 이후 대중적 차원에서 자리매김을 확고히해 가고 있는 여성복지정책의 성격이 좁은 의미에서 복지 문제와 넓은 의미에서 성차별 문제 중 어느쪽에 비중을 두면서 변화해 가고 있는지 혹은 변화해 가야 하는지 등에 대만 분석과 전망을 제대로 제시할 수 없는 제한점을 갖는다. 따라서 본 연구에서는 사회복지정책의 한 영역으로서 '여성복지'를 보는 여성복지정책과 '여성정책'의 한 영역으로서 '여성복지'를 보는 여성복지정책의 차원에서 김대중 정부와 노무현 정부 여성복지정책에 대한 논의를 전개하였다. 김대중 정부 출범 이후 여성복지정책의 변화 양상은 어떠한가? 여성복지정책과 여성복지정책 중 어떤 차원으로의 변화가 두드러진다고 볼 수 있나? 김대중 정부 여성복지정책 기조가 노무현 정부에서 계승되는 양상은 어떠한가? 노무현 정부 여성복지정책 기조는 여성복지정책과 여성복지정책 중 어느 것이 될 것인가? 김대중 정부 출범 이후 사회보험을 중심으로 일어난 변화는 여성복지정책이 전통적인 부녀복지정책 개념에서 탈피하는 양상을 잘 보여주고 있다고 알 수 있다. 또한 여성의 소득 수준 향상 등 여성복지정책적 측면에서 변화를 관찰할 수 있다. 그러나 여성복지정책적 성격을 드러낼 만큼 여성복지정책이 성차별 문제 해소에 중점을 두었다고 보기는 어렵다. 게다가 공공부조에서는 성차별 문제나 복지 문제 중 어느 것에 초점을 둔 정책 방향의 일관성을 발견하기 힘들다. 대통령 공약 사항을 중심으로 살펴본 노무현 정부 여성복지정책은 사회보험 대상자 확대라는 측면에서 여성복지정책적 차원의 단초를 보이고 있으니, 정색 기조는 김대중 정부의 여성복지정책 흐름을 계승하고 있다. 그러나 노무현 정부 출범 이후 관찰할 수 있는 정색 환경의 변화로서 여성부 기능 강화와 급격한 인구학적 변동을 고려할 때 정책 추진 주체 변화를 전제로 한 여성복지정책 강화를 예측해 볼 수 있다.

• Journal of The Korean Association For Science Education
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• v.25 no.5
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• pp.555-562
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• 2005

This study investigated the effects of cooperative learning environments in conceptual change instruction upon students' conception, achievement, learning motivation, attitude toward science instruction, and perception of involvement. Two classes of 8th graders at a co-ed middle school were assigned to the treatment and the comparison groups. They were taught about density, boiling point, freezing point, and solubility for 11 class hours. The treatment group's learning environment involved cooperative conceptual change instructions while the comparison group's environment incorporated individual conceptual change instructions. Mann-Whitney test results revealed that the scores of the conception and achievement test for the treatment group were significantly higher than those for the comparison group. The perceptions of involvement for the treatment group were more positive than those for the comparison group. The scores of the learning motivation test for the treatment group were found to be significantly higher than those for the comparison group based on a two-way ANCOVA analysis. However, attitudes toward science instruction were not found to be significantly different between the two groups.

• Journal of The Korean Association For Science Education
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• v.16 no.2
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• pp.164-174
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• 1996

본연구는 자유낙하 운동에 대학 학생의 개념을 이 개념의 역사적 변천 과정과 비교하여 분석하였다. 네 연령층(ll세,13세, 15세, 17세)으로부터 총 737명이 설문조사에 참여하였으며,설문에서 주어전 문항들은 자유낙하 운동과 관련하여 과거의 과학자(예를 들어, 아리스토텔레스, 임페루스 이론가, 갈릴레오)들이 고민하였던 핵심 문제를 반영하는 것이었다. 설문에는 세 문항이 포함되었으며,각 문항은 자유낙하 운동에 관한 세 가지 측면(즉,운동의 원인,낙하높이와 낙하속력의 관계,낙하 체의 무게와 낙하속력의 관계)에 각각 관련된 것이었다. 낙하운동의 원인에 대혜서, 전체 학생의 4.3%, 25.5%. 62.7%가 아리스토텔레스,임페루스스,갈릴레오적 관점을 각각 지닌 것으로 나타났다. 낙하높이와 낙하속력의 관계에 대혜서는,20.0% 와 29.0%의 학생들이 각각 아리스토텔레스와 갈릴레오적 관점을 지닌 것으로 냐타났다. 그리고 낙하체와 무게와 낙하속력의 관계에 대혜서는,19.0%,34.8%,42.2%의 학생들이 아리스토텔레스,임페루스,갈리레오적 관점을 지닌 것으로 나타났다. 개별 문항에서 부분적으로 임페루스적 관점으로부터 갈릴레오적 관점으로의 변화가 나타났으나,전체적으로 연령이 증가함에 따라 학생의 개념이 현대적 관점으로 변화한다고 판단 하기는 어려웠다. 그리고 본 연구로부터 학생의 개념과 그 개념의 역사적 변천 과정에 사이에 상당한 유사성과 함께 차이점이 존제함을 알 수 있었다.

• Korean Journal of Social Welfare
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• v.51
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• pp.157-182
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• 2002

This study attempts to identify the changes in social reactions to disabilities in general, and to research the contextual implication of these changes in social work practice in Korea. In the early years after the Industrial Revolution, disability was conceived as social unfitness and it was assumed that the cause and responsibility could be attributed to people with disabilities. But, in the midst and late 20th century, social responsibility for people with disabilities was argued and generally accepted. As the results of these changes, conceptual models explaining disabilities have changed gradually; there has been a transition, so called, from individual model to social model. In a similar vein, WHO has refined the definition and classification of disability. Related to these changes, social welfare service paradigm for people with disabilities has shifted. This paradigm shift can be explained with the perspective of strength approach, empowerment approach, case management and independent living model. In Korea, 1998 Act on welfare for people with disabilities meant that social service for the disabled were categorized with, namely, residential service, community rehabilitation service and vocational rehabilitation service. Recently, the extent of these services has been rapidly broadened. In these situation, this study researched to identify the implications on social work practice in the context of changes in social response, conceptual model, definition and also service paradigm. Such as the followings are enumerated for the implications: disabled person's participation in assessment process, development of assessment tools focusing on social and environmental perspectives, reinforcement of information service helping self-determination, supporting on formal and informal helping network, expanding self-help programs and, finally, a shift from displacement model to support model.

• Journal of the Korean Society of Earth Science Education
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• v.16 no.3
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• pp.328-339
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• 2023

The purpose of this study was to investigate the astronomy-related concepts formed by elementary school pre-service teachers and analyze the distribution of misconceptions. The study was conducted on 43 pre-service teachers enrolled in the second year of an elementary teacher training college located in the central region of Korea. As a result of the study, first, pre-service elementary school teachers' misconceptions about astronomy concepts showed a diverse distribution. In particular, pre-service elementary school teachers still had misconceptions regarding seasonal changes, which were pointed out in many previous studies. Second, pre-service elementary school teachers had formed concepts at the level of simple memorization of astronomy concepts and were having difficulty applying the concepts they knew to various cases. Based on these research results, future astronomy-related education should be directed toward understanding astronomical phenomena through the application and application of various cases rather than simple memorization, and astronomy education in teacher training courses and teacher training should also reflect this content.