• Proceedings of the Korea Information Processing Society Conference
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• 2012.11a
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• pp.1739-1741
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• 2012

국가 교육과정에서 컴퓨터 하드웨어만을 교과 내용으로 하는 최초의 과목은 4차 교육과정 시기 중공업 계열 고등학교에 신설된 '전자 계산기 구조' 과목으로 현재의 '컴퓨터 구조' 과목에 해당된다. 컴퓨터 구조 과목의 교과 목표는 학습자가 컴퓨터의 구조와 동작 원리를 바르게 이해하고 컴퓨터를 효율적으로 활용할 수 있도록 하는데 있다. 교과 목표를 위해서는 교과서의 내용이 정확해야 하고 현재의 컴퓨터 구조를 바르게 반영하고 있어야 한다. 본 연구에서는 공업 계열 고등학교의 컴퓨터 구조 과목에 제시된 연산 장치 영역 내용의 문제점을 컴퓨터 구조 전문 서적과의 비교를 통해 파악해 보고자 하였다. 연구 결과, 교과서의 연산 장치 영역에는 정확성과 일관성이 결여된 개념 정의와 현재의 CPU 구조를 반영하지 못한 내용이 포함되어 있었다. ALU와 연산 장치에 대한 설명이 교과서별 상이하였고, 연산 장치의 구성 요소들은 현재 사용되고 있는 CPU 구조를 바르게 나타내고 있지 않았다. 이러한 문제점들은 컴퓨터 과학의 역사적, 기술적 고찰을 통해 개선될 필요가 있다.

• Journal of Korean Home Economics Education Association
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• v.30 no.4
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• pp.113-126
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• 2018

This study aims to develop the content structure of healthy dietary education for multicultural family parents who guides their children to the correct and desirable applications at home. This study is an exploratory study intended to establish the contents of healthy dietary education for multicultural family parents. For the methodology we investigated dietary behaviors of children of multicultural families. As a result of examining closely the necessity and contents of healthy dietary education for the multicultural families parents including food safety, nutrition, and food culture. Based upon the above findings, the goals of healthy dietary education for parents were set up, its content area and sub-area(education topics) were composed and fixed, and finally, topic-specific goals and 12 content elements were extracted, detailed and systematized for pre schoolers and elementary school children.

• Journal of The Korean Association For Science Education
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• v.29 no.8
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• pp.910-922
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• 2009

The purpose of the study was to investigate the professional level of the Korean non-physics major middle-school science teachers in 'force and motion' content knowledge. For the study, nine science teachers who majored in chemistry, biology, or earth science were sampled from middle-schools in a big city in Korea. The physics concept test-tool (subjective type), which the authors developed, were administered, and then followed by in-depth interviews. The research findings are as follows: Firstly, non-physics major science teachers' correct answer rate in physics knowledge test of secondary school level was not so high that they may have difficulty in teaching correct concepts in physics to middle-school students. Secondly, some teachers show that they can not apply some physics concepts from one to another situation. That means that they may have difficulty in teaching physics conceptual application in various situations to students.

• Journal of The Korean Association of Information Education
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• v.16 no.1
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• pp.71-80
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• 2012

This study aimed to investigate technological pedagogical and content knowledge(TPACK) model, and to apply this model to preservice education. To perform this study, TPACK survey instrument was distributed to 142 preservice teachers who took technology integration course. The result showed that technology and content knowledge improved significantly, and pedagogical and pedagogical content knowledge did not show meaningful differences among 7 sub-categories. Based on the result of this study, we discussed the improvement of technological and content knowledge, and pedagogical knowledge. Also, we suggested that (preservice) teacher education should consider the combination of technological, pedagogical, and content knowledge in Korea.

• Journal of the Korean Chemical Society
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• v.46 no.1
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• pp.90-96
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• 2002

The STS contents, emphasized in the 6th curriculum, in the chemistry textbooks(II) were analyzed. The STS contents in textbooks showed average value of 2.7%. The chapter of ‘chemical bond and compound' were included 3.8% of STS contents. And the chapter of ‘atomic structure and periodic table', ‘state of material and solution', ‘science of material', and ‘chemical reaction' contained 3.2%, 2.2%, 1.9%, and 1.9% of STS contents, respectively. When the STS contents were analyzed by STS topics of Piel, the results are as follows; 33.7% on effect of technological developments, 27.5% on environmental quality and utilization of natural source, 19.6% on human engineering, 13.8% on energy, and 5.4% on sociality of science. However, there were no topics on population, space research and national defense. When the STS contents were analyzed by student activities of SATIS, most of the activities were research and case study. There were few field activities of practical investigation, problem solving and decision making, research design and stimulation. There were no activities of role play.

• Journal of Elementary Mathematics Education in Korea
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• v.15 no.2
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• pp.283-300
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• 2011

Since elementary students are in the concrete operational stages, they have to learn mathematics using intuitive methods such as visualization, observation, operation, experiment instead of formal approach. For this, we should present the various intuitive methods in curriculum and textbook. It is because that curriculum and textbook are important tools to students when they study mathematics. So, this paper intended to analyze the instructional content by intuitive principle in elementary mathematics curriculum, textbook and curriculum guide. The results are as follows: there is an intuitive principle in only character of mathematics in curriculum. I can't find the intuitive principle in other areas in curriculum. There are 12 intuitive principles in figures area, 1 in measurement area, and 2 in probability and statistics area in curriculum guide. But intuitive principles which are used are inclined to restricted to intuitive principle via representation obtained in the usual experience. Finally, I suggest some implications about teaching via intuitive principles, curriculum, and writing textbook based on the this findings.

• Journal of Korean Home Economics Education Association
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• v.15 no.3
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• pp.89-103
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• 2003

The purpose of this study was to investigate to relation of necessity and practice of contents of clothing and textiles education(classify them into four units, choice and dressing of clothes, textile and management of clothes, design and sewing of clothes, knitting and embroidery). Method of posing a questionnaire is adopted to obtain stochastic data required for pertinent analysis. This is the investigation of which 400 (high school students 204, university students 196) girl students located in Choongnam and Junrabookdo province. In this statistical analysis, SPSS 10.0 for Windows Program was utilized to calculate percentage, mean and standard deviation. Also, these materials were verified by t-test, One-way Anova, Pearson's correlation coefficient. The results of this research were as follows. First, girl students' necessity mean point were higher than practice mean point about the contents of clothing and textiles education. And necessity had a positive relationship with practices of contents of clothing and textiles education. Second, there was a significant difference in necessity and practice of contents of clothing and textiles education according to demographic variables. These results should be provide fundamental information for improving students' critical practice in their real life. Since this study has touched only limited research on the topic of clothing and textiles education, it is essential that further research covering a wider array of themes be done in the future. this study has touched only limited research on the topic of clothing and textiles education, it is essential that further research covering a wider array of themes be done in the future.

• Proceedings of the Korean Society for Information Management Conference
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• 1999.08a
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• pp.17-20
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• 1999

내용기반 이미지 검색에서는 이미지의 하위 영역을 구분하는 방식에 대하여 다양한 접근이 이루어져 왔다. 그중 한 가지가 Stricker와 Dimai가 제안한, 이미지를 다섯개의 영역으로 나누고 그 가운데 주재 객체가 위치할 것을 가정하여 높은 가중치를 부여하는 방법인데, 본 연구에서는 이와 같은 가정이 타당할 것인가를 S.K. Chang의 PIM(Picture Information Measure) 엔트로피를 계산하여 검증하려 하였다. 실험결과 이미지의 중앙과 그 외부 영역 사이에는 유의미한 차이가 존재하는 것으로 나타났으며, 따라서 Stricker와 Dimai의 방식을 지지할 수 있을 것으로 결론 내릴 수 있다.

• Proceedings of the IEEK Conference
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• 2001.06d
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• pp.235-238
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• 2001

최근 효과적인 내용기반 영상검색을 위해 특징 추출 방법이 많이 연구되고 있다. 특히 칼라 정보를 이용하여 특징을 얻는 방법은 여러 가지 장점 때문에 많이 사용되고 있다 본 논문에서는 칼라 코렐로그램(color correlogram) 기반의 새로운 특징 추출 방법을 제안한다. 제안한 방법은 웨이브릿 변환 계수를 사용하여 영상을 복잡한 영역과 그렇지 않은 영역으로 분할하고, 각 영역의 칼라 코렐로그램을 영상의 특징으로 사용해 영상을 검색하는 방법이다. 제안한 방법으로 영상을 검색하는 방법은 기존의 칼라 코렐로그램을 이용한 방법보다 성능이 우수함을 실험에서 확인할 수 있었다.

• School Mathematics
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• v.14 no.2
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• pp.233-253
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• 2012

The purpose of the study investigate mathematics content knowledge(MCK) of prospective teachers in differential area. 70 prospective teachers were asked to perform six questions based on Cho's MCK (2010, 2011). The results show that depending on whether they experience any teacher education program, the level of prospective teachers' mathematics content knowledge may vary. In particular, prospective teachers struggled with an unfamiliar problem situations. We also found that prospective mathematics teachers have some difficulty in solving problem about the use of mean value theorem and derivative.