• Journal of Educational Research in Mathematics
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• v.19 no.2
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• pp.307-319
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• 2009

Current school mathematics introduces addition/subtraction between natural numbers, fractions, decimal fractions, and square roots, step-by-step in order. It seems that, however, school mathematics focuses too much on learning the calculation method of addition/subtraction between each stages of numbers, to lead most of students to understand the coherent principle, lying in addition/subtraction algorithm between real numbers in all. This paper raises questions on this problematic approach of current school mathematics, in learning addition/subtraction. This paper intends to clarify the fact that, if we recognize addition/subtraction between numbers from the viewpoint of 'measuring' and 'common measure', as Dewey did when he argued that the psychological origin of the concept of number was measuring, then we could find some common principles of addition/subtraction operation, beyond the superficial differences among algorithms of addition/subtraction between each stages of numbers. At the end, this paper suggests the necessity of improving the methods of learning addition/subtraction in current school mathematics.

• The Journal of Korean Association of Computer Education
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• v.6 no.4
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• pp.195-207
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• 2003

The Seventh Curriculum uses not only individual assessment but also team assessment method that organizes and solves assignments by team unit. It also helps students to learn cooperation and responsibility and share the ideas and process of the team project with other students through class presentation. It is also cooperative learning which is performed by several students together. Therefore, the assessment of team project is required to synthetically assess the performance process not the itself. This thesis will examine the actual problems about team project assessment and analyze related literatures. Then, this study designs and implements a practical system which alleviates the burden of teachers in charge of a team project assessment and improves reliability and validity in assessing team projects through multilateral assessment aiming at process as well as result objectives.

• Journal of The Korean Association of Information Education
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• v.12 no.3
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• pp.253-265
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• 2008

Recently the cyber home learning system is executed throughout the country as a part of educational policies to reduce expenditure on private education and to promote educational welfare for alienated classes. Thus, in order to examine the effectiveness of the cyber home learning system, we conducted an online questionnaire survey with elementary and secondary students, cyber teachers under the OO Office of Education. According to the results, overall satisfaction with the cyber home learning system and its effectiveness were found high. In addition, what were required for more effective the cyber home learning system were expanding the execution of unit school learning, strengthening teacher training, increasing incentives for cyber teachers, intensifying campaigns for the cyber home learning system, providing various types of information and contents of education, and activating learning activities such as community, message and chatting. This study is expected to be a steppingstone to the settlement of more effective the cyber home learning system.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2015.07a
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• pp.92-93
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• 2015

최근 이슈화되고 있는 국가직무능력표준(NCS)에서 "방송통신직종"의 직무분석과 "국가기술자격검정"의 자격시험제도에 관한 실행방안을 알아본다. 국가직무능력표준은 학벌 중심의 사회에서 능력 중심의 사회로 전환하기 위한 정부의 정책방향에 따라 표준을 구성하였고, 표준에 기반 하여 학교교육 직업훈련 및 자격제도 개편을 하고자 시행되고 있다. 방송통신직종은 대분류가 정보통신이고, 중분류가 방송기술, 소분류가 방송제작기술, 방송플랫폼기술, 방송서비스로 분류되고 있다. 방송통신 직종의 각 세 분류 내에 능력단위를 보고 "국가기술자격검정"의 연관성을 검토하였다. 결과적으로 국가직무능력표준의 직무 능력단위의 수준을 검토함으로서 국가기술자격검정의 자격등급별로 타당성을 비교하였으나 능력단위 수준 및 능력단위의 내용이 가지고 있는 다양한 직업군을 자격검정으로 맞추지 못 할 것으로 판단이 되고, 자격제도의 올바른 시행을 위해서는 세부 항목을 검토하여 세분화하거나 자격검정을 새롭게 분류하여 제도화를 하거나 정비가 필요할 것으로 판단이 된다.

• Journal of Science Education
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• v.47 no.3
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• pp.273-285
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• 2023

Measurement in elementary school mathematics is one of the mathematical concepts that is directly used in real life. This study is based on the fact that mathematics textbooks for 3-4 and 5-6 graders were developed as the government designed and authorized textbooks and the general measurement instruction process is condensed and presented considering the limitation of the textbook's space for the capacity and weight. Its contents were analyzed. The results are as follows. The contents of authorized textbooks and government designed textbook are different in detail but similar overall in comparative activities, recognition, and situation of the need for the introduction of standard unit and estimation activities. Through this, it is proposed that efforts are needed to reform national textbook policies and develop textbooks that can highlight the meaning of each measurement activity and focus on students' activities.

• Journal of Elementary Mathematics Education in Korea
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• v.20 no.4
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• pp.627-654
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• 2016

Despite the significance of the measurement strand in elementary mathematics education, it is not easy to teach it meaningfully. This study analyzed instructional methods related to capacity and weight in a series of mathematics textbooks of Korea, Japan, Singapore, and the US. The overall analysis was conducted in the following two aspects: (a) what and when to teach main learning content, and (b) how to teach the learning content tailored to the instructional components specific to the topics of measurement (i.e., the necessity of measurement unit, the meanings of measurement terms, appropriate choice of units, appropriate choice of measurement tools, and the necessity of calculation). The results of this study showed overall similarities in using real-life contexts to teach major topics on capacity and weight as well as emphasizing the relations among measurement units. However, noticeable differences were also analyzed in dealing with the meanings of measurement terms, appropriate choice of units, and appropriate choice of measurement tools. Based on these results, this study provides textbook writers with implications on what to further consider in dealing with capacity and weight.

• Convergence Security Journal
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• v.15 no.1
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• pp.115-138
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• 2015

Expenses in the form of personnel expenses in the past, in modern times, machine guards to gradually transition has been. This is because the machine guard is more efficient than personnel expenses. But due to false alarms, despite the high expectations of the effects of electronic security in the operation of the electronic security system due to factors that hinder the development of machine guards growth slows. Defect removal aspects of this paper, using IPA (Importance Performance Analysis) techniques to study the operation of electronic security systems and its importance in the development of machine guards, look at how high the technical aspects of electronic security systems composite type of malfunction to minimize crime sensor are presented.

• Journal of the Korean Society for information Management
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• v.20 no.2
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• pp.157-175
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• 2003

The Ministry of Education and Human Resources Development is propelling the estabilishment project of Internet-based School Library Information System for prepares a foundation of resource sharing and inter-school library loan, to improvement of DB construction's efficiency and to reduces a maintenance's burden of local information system. This system adapted the Dublin Core based DLS-I metadata to accommodate teh network resources and conventional MARC, it will be able to use easily. But this system does not consider metadata for reading instruction that the important element of school library service. Thus, this study is review to the necessity of description on the reading and reading instruction beside of bibliographic data, extracts a metadata elements of reading and reading school library information system(DLS-I metadata)

• Proceedings of the Korea Technology Innovation Society Conference
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• 2017.11a
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• pp.799-818
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• 2017

4차 산업혁명은 메가시티를 포함한 지역 경제권, 교육 및 삶의 방식, 환경인프라 전반에 엄청난 영향을 미칠 것으로 예상된다. 이러한 변화에 효과적으로 대응하기 위해서는 국가 단위 대응뿐만 아니라 지자체 단위의 방향설정 및 지역 특성을 고려한 맞춤형 전략 수립이 필요하다. 주요국의 경우 광역자치권 단위의 전문조직(총괄기획 및 종합조정 컨트롤타워)을 두고 지속가능한 도시 성장을 모색하며 4차 산업혁명에 대응하고 있는 반면, 국내 지자체의 대응은 미비한 편이다. 이에 본 연구에서는 전문조직 설립을 통한 지자체의 4차 산업혁명 대응 방안을 연구하였다. 이를 위하여 주요국 대응 현황을 조사하였고, 서울특별시 케이스를 중심으로 전문조직 설립을 통한 글로벌 경쟁력 확보 및 지속가능한 성장 방안을 제안하였다. 구체적으로는 서울특별시 과학기술분야 관련 전문가 150명을 대상으로 설문을 수행하여 '(가칭)서울과학기술전략연구원'의 필요성, 미션, 핵심역할 및 기능을 정립하였고, 설립 및 운영방안을 설계하였다. 아울러 비용편익분석을 수행하여 해당 기관 설립의 타당성과 기대효과를 추정하였다. 마지막으로 연구결과를 종합하여 이론적 실무적 시사점, 연구의 한계점 및 향후 연구방향을 제시하였다.

• Proceedings of the Korea Contents Association Conference
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• 2015.05a
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• pp.91-92
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• 2015

이 연구의 목적은 최근 학문분야별로 체계적인 직무능력 매뉴얼이 개발되고 있는 상황에서 전문대학원 교육이 현장에 필요한 맞춤형 인재양성이라는 교육목표의 수월성을 위해 역량 있는 교육과정 방안을 직무능력에 근거하여 살펴보고자 한다. 연구 목적을 달성하기 위하여 먼저 국내외 전문대학원 문화콘텐츠(융합콘텐츠 포함) 관련 학과들의 교육과정을 분석하고, 이를 토대로 전문대학원 교육의 목표, 내용, 방법에 대한 종합적인 시사점을 도출한다. 다음으로, 전문대학원의 고유한 전문성과 주체성을 가진 현장밀착형 교육과정 사례를 통해 교육과정의 특성화 방안을 제시하고자 한다. 국가의 직무능력표준이 정한 문화콘텐츠 기획, 제작, 유통 및 서비스별로 요구되는 능력수준, 정의, 능력단위 요소를 체계적으로 제시함으로써 교육과정의 개념틀(framework of curriculum)을 마련할 수 있을 것이다.