• Journal of The Korean Association For Science Education
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• v.9 no.2
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• pp.89-97
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• 1989

어떤 현상에 대한 학생들의 수업전 개념구조가 과학자들의 그것과 다를때 이 수업전개념을 간단한 정성적인 퀴즈를 통하여 학생 스스로 인식하게 하고 실험 또는 관찰을 통하여 학생 자신의 수업전개념 보다는 과학자들의 개념이 실험결과를 더 잘 설명할 수 있다는 것을 깨닫게 함으로써 학생들의 수업전 개념구조를 변화시키려는 교수모델을 고안하여 그 효과를 검토하였다. 고등학교 1학년 남학생 115 명(실험집단 58명, 비교집단 57명)과 고등학교 2학년 여학생 120명(실험집단 59명, 비교집단 61명)을 대상으로 뉴우턴 제2법칙에 대한 학습에 적용하고 2주후에 뉴우턴 제2법칙에 관한 시험(13문항)을 실시하였다. 그 결과, 퀴즈에 사용한 것과 유사한 상황을 다룬 문제에서는 실험집단의 성적이 비교집단의 성적보다 유의하게 높았다. 그러나, 같은 개념을 다루나 새로운 상황의 문제에서는 그 효과가 유의한 차이를 나타내지 않았다. 한가지 개념이 여러가지 새로운 상황속에 나타날때 학생들에게 이미 친숙한 상황과 새로운 상황사이의 유사점을 강조하며 위의 교수법을 계속하여 사용한다면 학생들의 뿌리깊이 밝힌 수업전 개념구조를 변화시킬 수 있으리라 사료된다. 위의 교수법은 학생들이 자신의 수업전 개념구조를 명확히 인식하고 그 불합리함을 깨달아야 하므로 자신의 수업전 개념구조에 근거하여 어떤 결과를 예측할 수 있는 예측논리(Expectation or biconditional Reasoning)가 형성된 이후의 학생들에게만 효과가 있으리라 가정하였으나 교수방법과 예측논리 사이에 유의한 상호작용효과(interaction offect)는 나타나지 않았다. 다만 여학생의 경우에서만 학생들에게 새로운 상황의 문제에서도 예측논리를 이미 형성한 실험집단의 평균이 이에 상응하는 비교집단의 평균보다 높았다. 이것은 남학생과 여학생을 지도한 교사의 교수경력과 학생들의 수업전 개념구조에 대한 교사의 인식정도에 큰 차이가 있었음을 고려할 때, 위의 수업방법을 사용하는 데 있어 교사가 학생들의 수업전 개념구조가 학생들의 개념획득에 얼마나 커다란 영향을 끼치는가에 대해 인식하는 것이 중요한 요인임을 시사한다.

• 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.

• Proceedings of the Korean Institute of Industrial Safety Conference
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• 2000.06a
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• pp.270-275
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• 2000

본 연구는 다변량 통계분석을 이용하여 자동차사고성향에 대한 공통적인 특성을 찾아내고 그것이 심리적 성격특성과 관련이 있는가를 분석하고자 수행되었다. 이를 위하여 학생집단, 일반인집단 그리고 운전기사집단의 성격적 특성과 자동차사고경험 혹은 그 가능성을 비교 검토하였다. KG식 일반생활질문지에 의한 설문분석결과에 따르면 사고친화성향에 따라 2개의 집단으로 분류하는 것이 타당하다고 판단되었고, 수량화분석에 의해서도 집단을 구분할수 있었지만 일반인과 운전자 집단간에는 차이가 있었다.

• Korean Journal of Social Welfare Studies
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• no.39
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• pp.287-314
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• 2008

This paper tests the stigma hypothesis and administration hypothesis on the illegal take-up group and non take-up group in the National Livelihood Security Program. A set of survey data, using multinomial logistic model, was analyzed for this purpose. Compared with the legal take-up group, the feature of illegal take-up group which has more workable household supports the administration hypothesis - the low skill of means-test office would increase the possibility of benefit fraud. The features of non take-up group support both the stigma hypothesis - the stigma prevents eligible person from participating in the social assistance program, and the administration hypothesis - the administration office is apt to make error to deny the eligibility of person who has supposed family supporters.

• Journal of The Korean Association For Science Education
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• v.31 no.8
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• pp.1077-1091
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• 2011

The purpose of this study was to examine the effects of argumentation-based general chemistry laboratory on preservice science teachers' chemistry concepts understanding and writing. Five topics about argumentation-based general chemistry laboratory activities were developed using Science Writing Heuristic (SWH) approach. Summary Writing Test, and Chemistry Concepts Test were developed as tools to examine the effects of this approach. Both Argumentation-based general chemistry laboratory activities and traditional general chemistry laboratory activities were implemented for the experimental group (23 students), and traditional general chemistry laboratory activities were implemented for the comparative group (16 students). Results of this study indicated that there were significant differences in both groups' chemistry concepts understanding and summary writing. The experimental group showed significantly higher mean score than comparative group in chemistry concepts understanding and summary writing. In the analysis of the sub-component of Summary Writing, there were no significant difference between both groups in 'Big Idea.' However, the experimental group gained significantly higher mean score in 'argumentation,' 'understanding of science concepts,' and 'rhetoric structure.' The results showed that argumentation-based general chemistry laboratory programs were effective in achieving chemistry concepts understanding and writing in general chemistry laboratory.

• Journal of The Korean Association For Science Education
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• v.36 no.2
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• pp.347-360
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• 2016

This study focused on the use of student assessment activities to investigate the impact on reflective thinking in Argument-based Inquiry. The participants of the study were 166 10th grade students (six classes). Over one semester, students participated in five ABI programs that we developed. The experimental group (84 students) was taught Argument-Based Inquiry with students' self and peer assessment activities. The comparative group (82 students) was taught without the activities. We analyzed students' reflective writing to investigate how the student assessment activities influenced the students' reflective thinking. We also used the interviews and surveys to examine the validity of student assessment activities. According to analysis of the reflective writing, the experimental group had a significantly higher mean score than the comparative group in the 3rd and 5th writing. The ratio of students who showed a metacognitive level of reflection with regard to analysis of inquiry process, understanding of learning, and change of thinking increased in both groups, but the experimental group's ratio was higher than the comparative group's. The result of analysis of the reflective practice showed that the ratio of the experimental group's students who reached the metacognitive level of reflection in their writing increased, while the comparative group's decreased. Therefore, we conclude that student assessment activities can create a learning environment that facilitates student participation, increases the students' engagement in the learning process, and can be used as a tool to scaffold learning.

• The Journal of the Korea Contents Association
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• v.16 no.4
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• pp.179-194
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• 2016

The purpose of this study is to find out how the reconstructed textbook for vocational high school students influences on students' scholastic achievement and affective domain when it is used in the class of vocational high school. To tackle the study problems, the researcher chose two classes of the first grade in G commercial high school and gave lessons to each of the two classes; one class, as an experimental group, was taught with the reconstructed textbook and the other, as a comparative group, was taught with the original textbook. The following results are derived from the study. First, it turned out in the post academic achievement test result, there is no significant difference between the experimental group and the comparison group, by significant level; .05. However, the prior academic achievement test result shows that the average of the comparison group is 0.44 points higher than the average of the experimental group, while the post test result shows that the average of the experimental group is 1.96 points higher than the average of the comparison group. Second, it turned out by the post affective domain test result, there is no significant difference between the experimental group and the comparison group, by significant level; .05, and any significant difference did not occur in all five areas. However, the whole point of the affective domain and the points of each area of experimental group are higher than those of the comparison group, and the degree of improvement in experimental group is also greater than that of the comparison group. In conclusion, the effectiveness of utilizing a reconstructed textbook in vocational high school math class can be expected in the long term.

• Journal of The Korean Association For Science Education
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• v.32 no.7
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• pp.1099-1108
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• 2012

The purpose of this study was to examine the effects of argument structure on students' writing in implementation of argument-based inquiry using the Science Writing Heuristic (SWH) approach. Participants of this study were 108 8th grade students (three classes). Two classes (68 students) were assigned to an experimental group, and the other class (35 students) was assigned to a comparative group. The experimental group was taught argument-based inquiry using the Science Writing Heuristic (SWH) approach, while the comparative group was taught with the traditional teaching strategy. After implementing this program, the two groups were asked to write summaries using structured argumentation in their writing. The result of this study showed that the experimental group used better argument structure and multimodal representation such as pictures, graphs and examples in evidence than the comparative group. The quality of evidence used in the students' writing was different between two groups. Students of the comparative group only listed fragments of science concepts for evidence to support their claims, but students of the experimental group explained science concepts by giving specific examples. The findings show that argument-based inquiry using the SWH approach was effective on argument structure in students' writing.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.4
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• pp.489-499
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• 2016

This study examined the effects of a forest environment on internet addition and the self-esteem of internet-addicted adolescents. For comparison, the same group counseling programs were conducted in a classroom not in the forest. Twenty-four second grade students from a Middle School in S-city were grouped with 8 members in each group. Each group joined this program 6 times. The group results were then compared over a follow-up period. The dependent variables were the internet addiction scores and self-esteem scores. In the research results, the experimental group that undertook this program in the forest environment showed significantly different internet addiction scores compared to the control group immediately after the program and during the follow-up period. According to the period, the experimental group showed a significant difference in the internet addiction scores compared to the previous scores, immediately after the program and during the follow-up period. The comparison group showed no significant difference compared to the control group immediately after the program and during the follow-up period. The program in the forest environment showed a significant difference in the self-esteem scores compared to the comparison group and the control group immediately after the program and during the follow-up period. The self-esteem scores of the experimental group increased significantly compared to the comparison group and control group. In addition, the self-esteem scores of the comparison group also increased significantly, compared to the control group. The self-esteem scores of the experimental group also increased significantly, compared to the previous scores, immediately after the program and during the follow-up period. These results suggest that a natural environment, such as a forest, has therapeutic effects on decreasing the addiction symptoms' of internet addiction adolescents and also helps raise their self-esteem. Nevertheless, more study will be needed to verify what effects the forest environment have on the therapeutic mechanism on various addicts. Lastly, the constraints and implications of this research are described.

• Proceedings of the KAIS Fall Conference
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• 2012.05a
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• pp.214-218
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• 2012

본 연구는 문제중심학습이 유아의 문제해결력과 학습흥미도에 영향을 미치는가를 알아보는데 그 목적이 있다. 본 연구의 연구 대상은 D광역시에 소재한 사립유치원에 만5세에 재원 중인 유아 50명이다. 연구집단은 문제중심학습 프로그램을 처치하였으며, 비교집단은 교사중심 수업을 처치한 후 사전과 사후검사에는 문제해결력 검사와 학습흥미도 검사를 실시하였다. 본 연구를 위한 실험처치는 5주간에 걸쳐 진행하였으며 PBL 수업을 위한 프로그램 개발, 사전검사, 실험처치, 사후검사 순으로 이루어졌다. 본 연구에서 얻어진 주요 결과를 요약하면 다음과 같다. 첫째, PBL 수업을 적용한 연구집단이 교사중심 수업을 적용한 비교집단에 비해 유아의 문제해결력이 높았다. 즉, 문제의 발견 및 진술, 문제에 대한 아이디어 제안 및 적용, 문제 해결에 대한 결론짓기에서 유의한 차이가 있다. 둘째, PBL 수업을 적용한 연구집단이 교사중심 수업을 적용한 비교집단에 비해 유아의 학습흥미도가 높았다. 즉 주의집중, 흥미도, 자신감, 성실성, 활동에 대한 관심에서 유의한 차이가 있다. 이와 같은 결과로 볼 때 PBL 수업은 교사중심 수업에 비해 유아의 문제해결력과 학습흥미도를 향상에 있어서 더욱 효과적이다.