• Proceedings of the Zoological Society Korea Conference
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• 2003.08a
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• pp.221.3-221
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• 2003

• Proceedings of the Korean Information Science Society Conference
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• 2004.10a
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• pp.256-258
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• 2004

정보통신 기술의 발전은 교육시스템의 많은 변화를 가져오고 있으며 정보통신 기술을 이용한 학습자의 학습효과를 높이기 위한 많은 연구와 기술들이 적용되고 있다. 그러나 이러한 기술을 이용한 효율적인 교육평가시스템은 부족한 편이다. 현재의 교육평가의 경우 교수자가 기계적으로 학습자의 응답에 대해 정, 오답을 체크하고 단순히 점수화 된 결과만 출력한다. 학습자 오답 응답에 대한 교수자의 적절한 피드백이 잘 이루어지지 않고 있으며, 학습자의 학습곤란 및 학습결손에 대한 정보 취득이 어려운 현실이다. 또한 교수자 자신의 교수방법과 교수 내용 혹은 출제된 문제의 적절성 등에 대한 정보 취득은 어려울뿐더러 많은 시간과 노력이 필요하여 효율적이지 못하다. 본 논문에서는 이러한 비효율적이며 단순 평가의 문제점을 해결하고 교수-학습방법을 개선할 수 있는 평가 시스템을 구현하였다. 난이도와 이원분류를 문제 출제 시 적용하고 그에 따른 결과를 자동으로 분석하는 시스템을 설계하였으며 이러한 평가시스템을 통하여 학습자의 인지도 및 학습장애 등을 정확히 평가할 수 있으며 교수자는 출제된 문제의 적절성과 교수방법 또는 교수 내용 등을 스스로 평가할 수 있다.

• The Journal of the Korea Contents Association
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• v.18 no.8
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• pp.392-407
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• 2018

This study aims to prove the mediating effect of emotion dysregulation and perceived social support in the relationship between covert narcissism on the relation addiction. The researchers surveyed college students for about 3 weeks through a questionnaire on college campus or with the help of their colleagues and professors. The subjects were 362 students. SPSS, AMOS and Mplus were used for statistical analysis, correlation analysis and structural equation analysis. The conclusions are as follows : First, emotion dysregulation, relation addiction and covert narcissism showed positive correlation and covert narcissism, emotion dysregulation, relation addiction and perceived social support showed a significant negative correlation. Second, it was found that after investigating the mediation effect of emotion dysregulation and perceived social support in the influence between covert narcissism and relation addiction, emotion dysregulation turned out to have a significant mediating effect while perceived social support did not. Third, dual mediating effect was significant in emotion dysregulation and perceived social support in the influence between covert narcissism and relation addiction. These findings proved that covert narcissism, emotion dysregulation, perceived social support are variables that effect relation addiction, and also clarified that emotion dysregulation is a strong mediating variable in the influence between covert narcissism and relation addiction. Finally, when counseling a client with the same tendency as covert narcissism, it gives an opportunity to be aware of the emotional problem and an opportunity to positively perceive its own social resources, so as not to reach interpersonal problems such as relationship addiction pointed out the need for an approach.

• Journal of The Korean Association For Science Education
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• v.34 no.3
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• pp.295-301
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• 2014

The purpose of this study is to investigate the difficulties of teachers and students on the unit about 'measuring weight.' In this research, we have acquired data about teachers through survey, interview, and self-reflection journals, at the same time we have collected information on the students through survey, assessment test, and interview. We have extracted the difficulties from analysis with constant comparison method. In addition, we have analysed the curriculum of science and mathematics to know the leaning sequence. The analysis had been checked up by experts in science education. The result of the study is as follows: The difficulties of teachers are from the lack of teachers' descriptive knowledge, disorder of conceptual hierarchy in the curriculum, poor experimental instruments, and low psychomotor skill of students. The difficulties of students are from common misconceptions, opaque concepts, lack of manipulation skill, insufficiency of mathematical ability, difficulty of application of principles to the real situation, and lack of problem-solving ability. In addition, teachers have recognized that students face more difficulties in experiment class, while students think that they face more difficulties in conceptual understanding class.

• Journal of the Korea Society of Computer and Information
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• v.7 no.2
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• pp.59-67
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• 2002

Major Characteristic of the 7th National Curriculum in science is to provide deep and supplementary learning, depending on the level of each learner. In the level-oriented curriculum, coursewares are used to present teaching materials to various levels. In most coursewares, however, they provide their contents at a uniform level and hence it is hard to expect level-oriented learning. This paper presents learner's modeling for developing student's level-oriented dynamic tutoring system for science class , Instructional module of this system made by component unit is able to be reconstructed dynamically. Learning module is constructed using a hybrid model mixed of Overlay and Bug model. Testing module interprets diagnostic errors to be established by given differentiated weight in accordance with item's difficulty and discrimination. Through ITS student modeling, this system presents various problem solving methods reconstructed by learner's level differentiated.

• Journal of The Korean Association For Science Education
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• v.19 no.2
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• pp.229-238
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• 1999

This study investigated the influences of Vee diagram and regulative metacognitive learning strategies upon 6th-graders' achievement, difficulty toward science lesson, self-efficacy, and learning approach. The Vee diagram and regulative metacognitive learning strategies were modified in a pilot study. Before instruction, an achievement test was administered, and its score was used as a blocking variable. A previous science grade was used as a covariate for post-achievement. Tests of difficulty toward science lesson, self-efficacy, and learning approach were also administered, and the test scores were used as covariates. After instruction, a researcher-made achievement test and post-tests of the above variables were administrated. Two-way ANCOVA results revealed that although there were no significant differences in the achievement test scores, the application subtest scores of the two treatment groups were significantly higher than those of the control group. There were no significant differences in the difficulty toward science lesson and learning approach, but self-efficacy scores for the students with Vee diagram and regulative metacognitive learning strategies were significantly higher than those of the other groups. The perceptions of the students using Vee diagram were also analyzed.

• Journal of Gifted/Talented Education
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• v.13 no.2
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• pp.113-130
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• 2003

In this study, learning materials that can be applied for web-based distant learning model were developed based on the characteristics of elementary school science in which investigation skills and thinking ability are considered to be important. And the effect of students' activity in a reports on student's investigating and thinking ability was investigated. While designing diverse experimental procedures, the students had. an opportunity to improve their observation attitude and way of scientific thinking. Such improvement was possible, only because the present web-based distant learning model consists of requiring an interaction between the students and a report and evaluation system which can put together such effort. Still, it was acknowledged that, as being in lack of teacher's direct support and supervision, the present web-based distant learning model might be somewhat ineffective in guiding the students in accordance with their own characteristics. For example, the students had a tendency to maintain their basic idea and style even when their reports are individually examined and corrected in terms of the format of the report.

• Journal of the Korean Society of Earth Science Education
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• v.9 no.3
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• pp.352-363
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• 2016

The purpose of this study is to investigate the effect of elementary pre-service teacher's science concept level on teaching difficulty, teaching satisfaction, and class evaluation. This study was conducted for 117 first grade students who are studying at P National University of Education. For this study, 117 students were divided into two groups according to the science concept level, and teaching difficulty, teaching satisfaction, and class evaluation score of the two groups were analyzed. The conclusion of this study is as follows. First, the elementary pre - service teacher group with a higher level of science concept showed significantly lower teaching difficulties than those with lower levels. This shows us that if primary pre-service teachers who have high science concept level, they can teach primary school science more effectively. Second, the elementary pre - service teacher group with high level of science concept got higher score on teaching satisfaction than the group with lower level of science concept, but it did not show statistically significant. Third, the elementary pre - service teachers with higher science concept level showed significantly higher scores on class evaluation than those with lower concept.

• The Journal of Korean Association of Computer Education
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• v.23 no.2
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• pp.73-82
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• 2020

The main purpose of this study was to analyze the general informatization situation of North Korean defectors and to study the characteristics and needs of the learners in order to provide the directions of information education for them. The results of the study showed the following characteristics of the North Korean defectors: They are slow learners due to the fear of new devices, have difficulty in learning due to the unfamiliar language of information and English, and indifferent when the situation is not related to themselves. Based on these learner characteristics and needs, this study suggests the strategies of step-by-step repetition, use of North and South Korean dictionary of the information terminology, apply job-centered and communication abilities, and suggested a four-element STEP model. Raising the level of informatization of North Korean defectors will help establish a successful settlement to South Korea. This will be a valuable foundation and a stepping stone for the future unification of Korea.

• Journal of Korea Foundry Society
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• v.5 no.3
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• pp.47-51
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• 1985

FMC(FULL MOLD CASTING)법(法)이란 발포 polystyrene모형을 사용하여 조형후, 주형으로부터 모형을 발형치 않은채, 용탕을 주입하여 주물을 제조하는 방법을 말한다. 합성수지 발포체를 주조용(用) 모형의 재료로써 사용하는 방법은 1956년 미국의 슈로이어(H. F. Shroyer)에 의하여 발명되었으나 이것은 실제 주조에 응용하기에는 여러 곤란한 문제가 있어, 단순히 착상에 그치고 공업적으로 적용할 수 있는 기술을 확립치는 못하였다. 그후 서독 아헨대학교수로서 당시 발포폴리스티렌을 포함하는 각종단열재 제조회사 G+H 사(社)의 A. Wittmoser에 의하여 1962년에 처음으로 공업적으로 이용되어, 현재 서독, 미국, 일본등 유럽전역에서 응용되고 있다. 당사(當社)는 1977년6월 5일 첫 가동된 이후, 동(同)그룹 사(社)인 현대자동차로부터 자동차금형 (Press Die)주조를 FMC법(法)으로 생산하여 달라는 요구를 받고, 그해 12月부터 개발시험에 착수하여 이듬해 6월(月)부터 본(本) FM주조를 적용하여왔다. 그러나 1) 폴리스티렌 모형의 주입시(時) 부(不)기화 잔유물에 의한 주물표면결함 2) 도형제 박리 현상에 의한 표면결함 3) 주입시(時) 다량의 매연발생 및 4) 조형시(時) 모형의 변형에 의한 칫수결함 등의 문제가 대두되어 품질면에서는 1982년6월(月)에 와서야 어느정도 정상궤도에 도달하여 본격적인 FM 생산을 해오고 있는 중이다. 여기서 그동안 당사가 경험한 대형주물 (자동차금형:$1{\sim}10$톤/개)에 있어서의 FM 주조법의 적용사례를 본지(本誌)를 통하여 간단히 소개하고자 한다.