• 한국과학교육학회지
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• 제21권3호
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• pp.529-536
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• 2001

The purpose of the research is to investigate the effects of a portfolio system on students' socio-psychological classroom environments in elementary science class. Two schools were selected from a metropolitan area, a city, and one school from a rural area in central Korea. Two fifth-grade classes were sampled from each school selected, and one class is assigned to experimental group and the other to control group, respectively. The total number of participants of the study is 399. Portfolio system was administered to experimental group, and conventional teaching to control group for two and half month. WIHIC, an inventory to measure socio-psychological classroom environment, was administered as a pre- and post-test. Experimental group gained statistically higher scores on WIHIC after administering portfolio system. They showed more positive perceptions on sub-areas of WIHIC such as teacher support, task orientation, and equity. There is interaction between region and group: the effects of the portfolio system is highest in rural area, lowest in metropolitan area, and the city in between. Portfolio system have positive effects on students' socio-psychological classroom environments. Enhanced socio-psychological classroom environments is expected to contribute to positive self-concept, higher science achievements, and self-directed learning.

• 컴퓨터교육학회논문지
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• 제21권4호
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• pp.39-52
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• 2018

그 동안 플립러닝에 대한 많은 관심으로 여러 연구가 있었지만, 고등교육기관에서 교수들의 플립러닝 과목 개발을 돕고 지원할 수 있는 실질적인 연구는 부족하였다. 본 연구는 수업의 질을 개선하기 위해 교수학습을 전문적으로 지원하는 CTL과 같은 기관에서 실제적으로 적용 가능한 플립러닝강좌 개발 컨설팅모델 개발을 목적으로 한다. 이를 위해 문헌분석을 통해 도출된 모델안을 개발하여 전문가들의 피드백을 통해 최종 '수업코칭에 기반한 플립러닝강좌 모델'을 개발하였다. 총 8단계 모델의 1단계는 수업 개발사항 검토, 2단계는 수업 오리엔테이션, 3단계는 플립러닝 운영, 4단계는 전문가 수업분석, 5단계는 플립러닝 수업코칭 및 수업개선 모임, 6단계는 플립러닝 운영, 7단계는 교수자 성찰, 8단계는 환류 및 보완으로 이루어진다. 본 연구 결과를 토대로 대학에서는 플립러닝을 개발하는 교수자에게 수업의 개선을 위해 보다 실질적이고 전문적인 안내를 체계적으로 제공할 수 있으며, 개발된 모델을 기반으로 수업의 질적 제고가 가능하다.

• 한국가정과교육학회지
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• 제12권3호
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• pp.19-38
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• 2000

This study is about open and secondary level Home Economics Education which is applicable to field and which includes the characteristics, purpose and problems of each open education, secondary education and home economics education. Based on the ideology of open education this study will identify the meaning of openness in terms of Home Economics Education reconstructing meaning purpose, characteristics, curriculum paradigm and curriculum. The instructional model and module which use web, will be presented as the results o the reconstruction works. The open instructional module in Home Economics Education which will be operated on the web is consisted of 1) setting the orientation of curriculum development 2) instructional model development 3) rebuilding the Home Economics Education curriculum 4)development of instructional modules and web-based materials and 5)construction of the web-site. Six instructional module begin with critical/emancipatory curriculum paradigm in open Home Economics Education use module as a unit of class management instead of 1 class, facilitates nest-type integration which is applied from open education keeping the nature of Home Economics Education and focus on practical problem and problem solving through reconceptualization with dialectical perspective on individual, family and society. The practical problem solving model has four steps: Identifying practical problems. Understanding the contexts of problem, Searching for solutions and examining its consequences, Action and evaluation. The web-site has to be developed based on the six instructional module includes those issues : self-identification for reinforcing autonomy and self-esteem, living with family living with friends, autonomous living healthy living and understanding sexuality.

• 한국과학교육학회지
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• 제30권4호
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• pp.412-428
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• 2010

이 연구는 2명의 중등 과학영재 지도 교사의 수업 전문성을 교수지향의 관점에서 알아보고자 한 것이다. 두 교사 모두 6년 이상 중등 과학영재의 생물 수업을 담당하였으며, 영재교육 교사연수를 이수하였다. 참여교사 당 2차시의 수업관찰과 녹화, 2차례의 심층면담을 통해 자료를 수집하였다. 모든 수업자료와 면담자료는 전사된 후 분석되었다. 연구결과 교사들의 수업에서 몇 가지 특징이 나타났다. 두 교사 모두 '개방적 탐구' 지향을 나타냈다. 이것은 탐구력과 창의적 문제 해결력을 신장시켜 과학영재가 과학자로 성장할 수 있도록 도와야 한다는 교사의 교육목표와 신념을 반영한 것이다. 그러나 교사의 전문적 지식의 구체적 내용과 강조점의 차이에 따른 신념은 '학문적 엄격성'과 '발견'의 서로 다른 지향으로 나타나기도 하는데, 이것은 수업에서 다루는 교과 내용 수준이나 범위 등에 영향을 주는 것으로 보인다. 교사들의 과학교수지향은 수업 대상 학생과 과학영재 수업 경험의 증가에 따라 변화한 것으로 나타났다. 이 과정에서 교사의 과학영재 교육철학이 교수지향에 중요한 영향을 끼치는 것으로 나타났다. 교사의 전문성 신장을 위한 지속적인 노력을 바탕으로, 교사는 수업에 대한 자기반성을 통해 과학영재교육의 이론적 지식을 비판적으로 검토한다. 이를 통해 교사의 과학영재 교육철학이 정립되고 내면화될 때, 교사가 의도한 과학교수지향이 수업 실행에서도 일치되게 나타나는 것으로 보인다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2001년도 추계학술대회 논문집 전기물성,응용부문
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• pp.131-133
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• 2001

Dendrimers represent a new class of synthetic macromolecules characterized by a regularly branched treelike structure. Peculiar features of the dendritic geometry are the large number of end groups as well as the shape persistence in higher generations, approaching spherical geometry. And one of the most peculiar characteristics of dendritic macromolecules is their controlled molecular structure and orientation, which means that they have a practical application in achieving a highly organized molecular arrangement. We attempted to fabricate a G4-48PyA dendrimer LB films containing 48 pyridinealdoxime functional end group that could form a complex structure with metal ions. Also, we investigated the surface activity of dendrimer films at air-water interface. And we have studied the electrical properties of the ultra-thin dendrimer LB films. The electrical properties of the ultra-thin dendrimer LB films were investigated by studying the current-voltage characteristics of metal/dendrimer LB films/metal (MIM) structure. And rectifying behavior of the devices was occurred in applied field.

• 대한기계학회논문집A
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• 제21권1호
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• pp.124-132
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• 1997

This paper describes an experimental and numerical study on growing ductile crack-tip behaviors. The hybrid experimental and numerical method by means of a computer image processign technique, was applied to the analysis of both base metal and weld metal CT specimens. In the weld metal specimen, the initial crack-tip was placed in front of fusion line, and the crack orientation was perpendicular to it. Finite element analysis of crack growth behaviors in both base and weld matal specimens made of A533B Class 1 steel were also performed to examine the effects of weldment on near crack-tip fields. a series of experimental studies on crack-tip behaviors have clearly shown the qualitative effects of material properties, especially a hardening exponent. The experimental and numerical results have also shown that weldment does not affect displacement and strain fields near a crack-tip while a stress field is influenced by the difference between yield stresses of both base and weld metals.

• 복식
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• 제52권4호
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• pp.51-63
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• 2002

The purpose of this study is to review the symbolic meaning in 20th century men’s fashion through analyzing of social environment factors. After recent industrial society, men had expressed their privilege, prestige and social power according to fashion. Men's fashion at the beginning of the 20th century was emerged as the images of robustness and strictness with perfect cutting, thick and stick fabric and dark color that were influenced by british style. It was symbolic meaning of authority orientation which showed the superiorities of social and sex classes. It was beginning of change according to social phenomena. The world war Ⅰ,Ⅱ and change of lifestyle by material affluence in automobile industry mollified rules of men's fashion. It showed a serenity of living. Also, the growth of young culture changed trickle-down of men's fashion into bottom-up and showed opposition for elite culture in fashion. These change particularly became acceleration by Individualism, open-society and the collapse of sex class. Men expressed sexual and inherent desire for fashion that was no longer concerned with symbolizing of authority but rather with pleasure pursuit.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2001년도 하계학술대회 논문집
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• pp.761-763
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• 2001

Dendrimers represent a new class of synthetic macromolecules characterized by a regularly branched treelike structure. Dendrimer can be made with high regularity and controlled molecular weight. Peculiar features of the dendritic geometry are the large number of end groups as well as the shape persistence in higher generations, approaching spherical geometry. One of the most peculiar characteristics of dendritic macromolecules is their controlled molecular structure and orientation, which means that they have a practical application in achieving a highly organized molecular arrangement. We attempted to fabricate a G4-48PyA dendrimer LB films containing 48 pyridinealdoxime functional end group that could form a complex structure with metal ions. Also, we investigated the surface activity of dendrimer films at air-water interface. And we have studied the electrical properties of the ultra-thin dendrimer LB films. The electrical properties of the ultra-thin dendrimer LB films were investigated by studying the current-voltage(I-V) characteristics of metal/dendrimer LB films/metal (MIM) structure. And rectifying behavior of the devices was occurred in applied field.

• Child Health Nursing Research
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• 제26권4호
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• pp.422-433
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• 2020

Purpose: This study describes the development of a violence prevention educational program for elementary school children using empathy (VPEP-E) that teachers can use during class. Methods: Hoffman's theory of empathy and Seels and Richey's (1994) ADDIE model were applied to develop this program. Results: The developed program consisted of eight sessions: "Orientation/definition of violence and empathy", "Types and boundaries of violence", "Look into my feelings", "Say it with a facial expression", "Preventing non-empathic violence due to social prejudice", "Preventing physical violence", "Verbal and online violence prevention: empathic conversation", and "I can do well: review of the whole curriculum". The program was evaluated by 15 elementary school teachers, who considered it to be easily accessible to elementary school students. The final VPEP-E, which will be provided in eight times for 40 minutes each for fifth-grade students, will provide a basis for preventing violence by fostering empathy. Conclusion: We expect the developed educational program to be effective in preventing violence among elementary school students. However, further research involving children from various age groups is needed.

• 한국콘텐츠학회논문지
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• 제16권1호
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• pp.503-514
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• 2016

신자유주의 경제의 확산으로 인해 전세계 인구 이동의 흐름은 급격히 변화해왔으며, 단일민족 국가라 믿어왔던 한국 역시 이러한 흐름으로부터 자유로울 수 없었다. 전형적인 노동력 수출국이었던 한국은 이제 노동력을 수입하는 주요 국가이며, 이주민들로 인해 사회적 지형은 지난 십 수년간 급격히 변화해왔다. 그러나 이에 대한 미디어의 재현은 지극히 제한적이고 정형화되어 있다. 따라서 본 연구의 주목적은 한국사회의 시대적 변화 속에서 지상파 방송사들이 뉴스 콘텐츠를 통해 이주민들을 재현하는 양식을 영상담론을 통해 분석하는 것이다. 연구결과 지상파 방송뉴스에 재현된 이주민들은 특정한 영상재현 방식으로 담론화되며, 이는 한국인들과의 이항대립을 이루어 그들에 대한 스테레오타입을 확대재생산하는 메커니즘으로 작용한다는 것을 밝혀냈다.