• Journal of Educational Research in Mathematics
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• v.19 no.1
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• pp.1-24
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• 2009

The applications of ratio and similarity have been in need of everyday life from ancient times. Euclid's elements Ⅴand Ⅵ cover ratio and similarity respectively. In this note, we have done a comparative analysis to button down the contents of ratio and similarity covered by the math text books used in Korea, Euclid's elements and the math text books used in Japan and America. As results, we can observe some differences between them. When math text books used in Korea introduce ratio, they presented it by showing examples unlike math text books used in America and Japan which present ratio by explaining the definition of it. In addition, in the text books used in Korea and Japan, the order of dealing with condition of similarity of triangles and the triangle proportionality is different from that of the text books used in America. Also, condition of similarity of triangles is used intuitively as postulate without any definition in text books used in Korea and Japan which is different from America's. The manner of teaching depending on the way of introducing learning contents and the order of presenting them can have great influence on student's understanding and application of the learning contents. For more desirable teaching in math it is better to provide text books dealing with various learning contents which consider student's diverse abilities rather than using current text books offering learning contents which are applied uniformly.

• Journal of The Korean Association For Science Education
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• v.26 no.6
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• pp.691-702
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• 2006

The purposes of the study are to portray Korean beginning secondary science teachers' ways of arranging science content, sense-making strategy, and factors contributing to the tensions between teachers' intentions and actual practice. Six beginning secondary science teachers participated in this study. Science classes taught by the participating teachers were observed and videotaped. Semi-structured interviews were conducted for science teachers participated in this study after science classes were observed. Instructional materials were also collected for each science class. Video- and audio-taped data were transcribed and analyzed using conceptual framework developed by the Michigan State University. The findings of this study produce the following conclusions: (1) beginning teachers' science classes are arranged in ways compatible to traditional school science, (2) frequently used sense-making strategies are procedural display and narrative reasoning, (3) tensions between beginning teachers' intentions and practice arise from two factors such as assessment and differences in educational views with peer teachers, and (4) learning experiences, lack of perceptions and preparations on reform science teaching, and the absence of systematic program for professional development programs for beginning science teachers are major obstacles to reform science teaching for beginning teachers.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.20 no.3
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• pp.65-80
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• 2009

This research analyzes the revised philosophy class in the 5th Edition of Korean Decimal Classification. It depends on the 1st Edition of KDC despite of the fact that contents and words were revised and changed, numbers for classification were moved, and indices were removed from the previous Edition of KDC. The object of the 5th Edition of KDC, metaphysics and eistemology are organized in the same sub-class(綱) through modifying, sex psychology, development psychology, physiognomy fortune judgment, applied psychology are expanded that its data are increasing in psychology, ethics, moral philosophy are modified.

• School Mathematics
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• v.6 no.3
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• pp.251-266
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• 2004

The purpose of this study is to analyze the concept of correlation in statistics, secondary mathematics textbooks, foreign mathematics textbooks in point of didactic transposition theory. It is investigated that the relevance and alternative ways of introducing correlation concept without correlation coefficient. In addition, we compare five Korean secondary textbooks and find out characteristics on didactic transposition of correlation. We end pedagogical implications of the analyses presented and general conclusions concerning the didactic transposition of correlation.

• Journal of Elementary Mathematics Education in Korea
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• v.22 no.2
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• pp.199-220
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• 2018

This is a traditional education content that has been consistently handled in elementary school mathematics textbooks since the first curriculum in Korea. It has been mainly used to find out the properties of the solid figure or to save the surface area. However, as the importance of spatial ability is increasingly emphasized, the nets of solids can be a very suitable learning material for dealing with the spatial ability. Therefore, in this study, we examined how the nets of solids were taught in elementary school mathematics curriculum and textbooks in Korea, and based on the analysis, we analyzed the contents of the nets of solids covered in textbooks of Japan, Singapore, Finland and Hong Kong. Through this study, we suggested the enhancement of activities to find the right nets, the presentation of solid figure from various angles, and the nets of solids with patterns for improvement of spatial visualization and spatial orientation.

• Journal of the Korea Convergence Society
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• v.8 no.9
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• pp.265-270
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• 2017

This study purposed to investigate harmonic compositions and progressions that are appropriate for emotion vocabulary. In study 1, eight(8) professional music therapists were asked to provide harmonic compositions and progressions reflecting the tonal characteristics of emotion vocabulary and the rationales. Various attributes of harmonic compositions and progressions were examined and the content analysis were administered. In study 2, the obtained data on study 1 were evaluated by 124 music therapy and music majors for the validity. In the first study, analyzed results showed that 'happy' vocabulary utilized major, tonic, consecutive chord changes, 'angry' vocabulary utilized minor, augmented, $9^{th}$, $11^{th}$, unsolved $7^{th}$ chord progression, 'sad' vocabulary utilized minor, diminish, chromatic chord progressions. In the second study, there was statistically significant difference with 'happy' vocabulary. These results can provide basic evidences for musical ideas of harmonic compositions and progressions to better communicate emotional aspects of lyrical messages when composing melody in a song.

• Journal of Korean Electronics
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• v.21 no.11
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• pp.19-23
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• 2001

향후 디지털 사회는 포스트 PC가 주도할 전망이다. 이에 따라 포스트 PC사업을 둘러싸고 마이크로소프트와 리눅스 업체들 간 협력사 확보 경쟁도 치열하게 전개되고 있으며 연말쯤에는 윈도우와 리눅스 계열의 포스트 PC제품이 속속 등장해 수요경쟁을 벌일 것으로 전망된다. 이에 본회 정보 통신 산업 팀에서는 지난 10월 12일 COEX에서 한국전자전 부대행사로 본회 회원사, 컴퓨터 업체, 정보통신 벤처 업계 등 1000개사가 참석한 가운데 국내 POST PC산업현황과 향후 발전방안을 주제로 기술세미나를 개최하였다. 본고는 세미나 내용 중 전자부품연구원 서경학 본부장이 발표한 내용을 중심으로 요약 정리하였다.

• Vending industry
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• v.6 no.3 s.18
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• pp.41-43
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• 2006

유진미코토코리아는 국내 캡슐토이자판기 사업의 절대 강자이다. 지금까지 3,000여대(4대 1세트 기준)의 제품을 마트, 고속도로 휴게소, 패밀리 레스토랑 등의 고급 로케이션에 전개하며 사업을 활성화시키고 있다. 유진미코토코리아의 무엇보다 큰 경쟁력은 캡슐토이 내용상품의 품질에 있다. 판매되는 고급 만화 및 애니메이션 캐릭터의 뛰어난 품질은 높은 소비자 만족도를 자랑한다. 끊임없이 새로운 내용상품을 추가하며 소비자의 기호를 충족시키고 있기 때문에 사업성 역시 계속 확대되고 있다. 유진미코토코리아에 의해 열리는 캡슐토이자판기 사업의 전성시대, 그 중심으로 들어가 봤다.

• Proceedings of the Korean Society for the Gifted Conference
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• 2003.11a
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• pp.199-208
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• 2003

현대사회를 지식 정보사회라고 한다. 정보 매체인 컴퓨터의 등장은 모든 분야에 획기적인 변화를 가져왔고 그 변화는 계속되고 있다. 교육의 분야도 예외가 아니다. 업무처리와 학생지도에 컴퓨터가 도입되면서 능률적인 일처리와 다양한 방법의 학습지도가 가능하게 되었다. 초등 컴퓨터 교과가 재량활동의 교과로 선정되면서 컴퓨터 교과에 대한 교육과정 개발과 평가방법의 연구가 활발하게 전개되고 있다. 모든 교육활동에 있어 평가라는 부분을 그 교육활동의 성패를 좌우하는 중요한 요소이기에 아주 중요한 부분이다. 초등 컴퓨터 교과에 대한 전반적인 내용과 평가 방법을 살펴보고, 각 단계별 영역별 내용에 따른 평가 예시를 하였다.

• Digital Contents
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• no.3 s.10
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• pp.51-57
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• 1994

컴퓨터와 통신기술의 발달은 미디어간의 융합을 촉진하고 새로운 미디어를 창출하여 뉴미디어시대, 멀티미디어시대라는 열병을 낳고 있다. 미국에서는 신문사와 전화회사간에 전자정보서비스시장을 두고 첨예한 주도권 쟁탈전이 전개되다가, 서로 동맹하는 시기로 접어들었다. 이제는 컴퓨터의 메이커 및 통신회사를 미디어산업에 가해야하는 시대인 것이다. 이글은 미국신문협회의 프레스타임 최근호(93.9.12월, 94.1월호)에 게재된 신문사의 뉴미디어 대응 관련기사를 편역한 것이다. 여기서는 미국의 신문사들이 이러한 흐름에 어떻게 대응하고 있는지, 그리고 장차 어떻게 대응해야할 것인가에 대하여 기술하고 있다. 프레스타임은 신문이 전자장보서비스의 주요 요소인 '정보내용'을 가지고 있으며, 이를 잘 활용해야 할 것이라고 주장한다.