• 한국과학교육학회지
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• 제24권4호
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• pp.722-730
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• 2004

The purpose of this study was to test the notion that the inter-individual difference in hypothesis-generating is presumably detected by differentiating subjects' EEG correlation patterns of the prefrontal lobes. To test the notion of the inter-individual difference by EEG analysis, eight healthy undergraduate volunteers' EEG signals on the prefrontal lobes were recorded during hypothesis-generating and resting with eyes-closed condition. Their EEG signals were analyzed by time durations and transformed into correlation patterns. The results showed that subjects' EEG correlation patterns during hypothesis-generating were significantly different among individuals. In addition, the EEG correlation patterns were decreased during hypothesis-generating thinking. Furthermore, subject's EEG correlation showed a fluctuationpattern through-out hypothesis-generating, which is presumably caused by the difference of subjects' thinking activities in hypothesis-generating. This study also suggests a possibility that student's scientific thinking ability and the difficulty of scientific knowledge generating may be measured by the analysis of subject's EEG correlation pattern of the prefrontal lobes.

• 한국과학교육학회지
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• 제25권7호
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• pp.711-720
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• 2005

The purpose of this study was to understand mechanisms of scientific discovery and how this can help students, as young scientists, to understand scientific ideas in the science classroom. To unravel this mechanism, this study employed the notion of chaos. This phenomena was rediscovered by Edward Lorenz. In this paper, the general concept of chaos was briefly discussed in relation with previous scientific theories such as Newtonian physics and quantum mechanics. Following this, discovery constraints in terms of available technology at the time was described. In addition, Lorenz's psychological processes during the discovery was also discussed. Based on analysis, major implications for the field of science education were the provision of relevant schemata, the use of cognitive tools, the presentation of problems with various representational forms, and the sharing of ideas with others.

• 한국초등과학교육학회지:초등과학교육
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• 제19권2호
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• pp.75-82
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• 2000

The purpose of this study was to investigate the effectiveness of teaching strategies for scientific conceptions in the units of oxygen and combustion in elementary school science textbook. 70 elementary school 6th grade students in Seoul participated. They were divided into experimental group and controlled group. Five scientific concepts were adopted from the units of oxygen and combustion in the 6th grade science textbook. Subjects' preconceptions were investigated by pre-questionnaires. A series of 6 instructional sessions based on the teaching strategy of cognitive confliction theory were given to the experimental group. By the end of the instructional session, a post-test was administered to both experimental and controlled groups. There was a statistically significant difference between post-test gains of the experimental and controlled groups. These results support the notion that the teaching strategy was effective for changing from preconceptions to scientific concerts.

• 한국과학교육학회지
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• 제23권4호
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• pp.430-441
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• 2003

The purpose of this study was to investigate the effects of students' prior knowledge on scientific reasoning in solving a pendulum task with a computer simulation. Subjects were 60 Korean students: 27 fifth-grade students from an elementary school and 33 seventh grade students from a middle school located in a city with 300,000 people. This study adapted a pendulum task presented with a computer simulation on which subjects would use a pattern of multivariable causal inferences. The subjects were interviewed individually in a three-phase structured interview by the researcher and three assistants while he/she was investigating the pendulum task. This study showed that most students across grades focused heavily on demonstrating the primacy of their prior knowledge or their current hypothesis. In addition, students' theories that are part of one's prior knowledge have a significant impact on formulating, testing, and revising hypotheses. Therefore, this study supported the notion that students' prior knowledge had a strong effect on students' experimental intent and hypothesis evaluation.

• 디지털융복합연구
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• 제14권10호
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• pp.399-406
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• 2016

과학교육의 패러다임이 과학지식의 전달에서 '대중화'로 바뀌어 가면서 과학교육에서 시각적 도구를 활용한 커뮤니케이션 방식이 점차 중요해 졌다. 본 연구에서는 과학 커뮤니케이션의 시각적 도구로 "파타포(Pataphor)"에 대해 고찰하고, 그 역할과 유형을 제안하였다. 문학에서 '가상과 현실의 중첩' 이미지로 사용 되었던 '파타포'의 개념을 콘텐츠 디자인 관점으로 고찰함으로써, 파타포를 과학적 상상력을 토대로 현실과 형이상학적 유사성을 도출하거나 만들어 가상과 현실을 중첩시켜 표현하는 시각적 방법이라고 정의하였다. 또한 시각매체로서의 파타포의 역할을 도출하고, 파타포의 유형을 "현실 복제적 파타포", "현실 반영적 파타포", "현실 변형적 파타포", "인공 현실적 파타포"로 제안하였다. 본 연구를 통해 콘텐츠 제작 매체와 학습자의 콘텐츠 인지과정에 따른 파타포의 활용에 대한 구체적인 연구에 대한 필요성을 발견하고, 향후 이에 따른 파타포 활용 방법에 대해 연구를 진행하고자 한다.

• 디지털융복합연구
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• 제14권11호
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• pp.45-51
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• 2016

개인정보 유출 사고를 불러일으키는 근거를 과학적으로 발굴해 보려는 연구는 아직까지 전무한 실정이다. 본 논문은 해킹을 통한 주민 정보 유출의 정도를 결정짓는 근거 요인을 찾아내기 위해 시도됐다. 연구의 중요도에 비추어 이를 위한 연구가 문헌상에 나타나지 않았던 점은 과학적인 연구방법론을 찾아내고 적용하기 곤란한 연구주제인 점에서 본 논문에서는 과학적 분석 모형을 제안하였고 그에 기반 한 분석 방법론을 개발하였다. 연구결과, 개인 식별에 동원되는 데이터의 경직성 요인이 유출 수위에 가장 결정적 역할을 하는 것으로 드러났다. 강도가 강할수록 해킹건수와 비례하는 것이 증명됐다. '주민 데이터 자유도' 개념을 정립함으로써 국가별 주민식별관련 주민 자유도 허용 순위를 결정할 수 있었다. 영국과 한국이 순위 열 양단에 위치하는 것으로 드러났으며 자유도 면에서 영국이 국민에게 가장 많은 자유를 허용하는 국가로, 또한 한국이 가장 좁은 의미의 자유를 허용하는 국가로 매겨졌다.

• 한국과학교육학회지
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• 제16권1호
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• pp.77-86
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• 1996

The purpose of this study was to review the studies related to concept learning forcusing on the meanings, kinds, and characteristics of concepts. Then the characteristics of the concepts were analyzed in the three positions: metaphysics, epistemology, and psychology. It was identified that the word 'concept' were confused with the other words such as conception, construct, idea, notion, identity. It was also found that researchers defined the concepts by the use of various meanings. The instructional strategies for scientific concepts were also analyzed in this study. The study found that the instructional strategies for concept learning were developed according to the views about the nature of concepts. Described on the paper are three types of instructional models for science concepts suggested by constructivists as follows: concept formation, concept differentiation, and exchange. They developed the models based on the current research on the misconceptions of major scientific concepts.

• 한국과학교육학회지
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• 제33권1호
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• pp.132-143
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• 2013

본 연구에서는 2009 개정 과학 교육과정에 따른 고등학교 물리 교과서에 제시된 탐구활동을 과학적 실천 개념을 이용하여 분석하고, 교과서를 통해 학생들에게 제공되는 가능한 탐구 학습의 경험을 알아보았다. 분석 결과 '자료를 분석하고 해석하기'와 '설명 구성하고 문제해결 고안하기'가 다른 과학적 실천에 비해 강조되는 것으로 나타났다. 반면 '질문하고 문제 규정하기'는 물리 교과서 4권을 통틀어 단 1건이 있었다. 단원별로 강조되는 과학적 실천의 차이가 거의 없어 특정 과학적 실천의 강조가 교과 내용과는 무관한 것으로 드러났다. 또한 탐구활동에서 수행한 과학적 실천이 교과서 내용 전개상의 탐구활동의 목적과는 무관하게 사용되고 있음이 드러났다. 교육과정과 교과서 그리고 교사 교육에 대한 시사점과 후속 연구 과제를 제시하였다.

• 농촌지도와개발
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• 제22권4호
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• pp.465-479
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• 2015

The purpose of this study is to explains consumers' medical discourse embedded in the consumption of oriental medicine and health functional foods. Despite the fact that both of oriental medicine and western medicine is legally accepted, people tend to recognize that accurate diagnosis is possible only in the latter. As the discourse that oriental medicine, compared with western medicine, has an auxiliary position is widely spreaded, the rivalry between herbal medicine and health functional foods come to be formed. And it led to a close correlation between the decrease of herbal medicine consumption and the growth of health supplement market. Herbal medicine is compared to red ginseng, one of the representative health supplement. Negative notion such as using an Asian herb from China and side effect of hepatotoxicity influences herbal medicine consumption. This study argues two conclusion. First, the correlation between the consumption of herbal medicine and that of health functional foods results from the discourse of scientific reconstruction, standardization, and commercialization all of which come from globalization discourse. Second, medical discourse embedded in these commodity, in the end, has impact on agricultural production.

• 대한안전경영과학회:학술대회논문집
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• 대한안전경영과학회 1999년도 추계학술대회
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• pp.53-72
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• 1999

IPQC system was introduced for the flight safety at the age of scientific safety management in the 1980s. In spite of performing this system, aircraft accidents caused by human factors, which were above 70% among all flight accident factors, have not been reduced. Accordingly, throughout this paper I analyzed the aircraft accident factors by means of a literature study and a pilot survey. Then, based on the notion of TQC(Total Quality Control), I hierarchically classified Individual Quality into Capacity Management, Safety Management, and General Management and did the low-ranked management factors as well. AHP (Analytic Hierarchy Process), one of the scientific management methods, was used for estimating the relative importance of Individual Quality Control factors and the heavy aircraft accident causes over the last 20 years were analyzed according to the flight ranks. Based on the comparative analysis of results derived above, an IPQC model as flight ranks is established. In short, according to this newly suggested model we can obtain the maximum flight safety with the preventive actions against aircraft accidents caused by human factors and by improving the operation effect under the reasonable pilot management.