• 컴퓨터교육학회논문지
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• 제20권2호
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• pp.13-21
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• 2017

본 연구의 목적은 SW 교육에서 학습자들의 컴퓨팅 사고력을 신장시키기 위한 디자인 중심 모형(NDIS)의 효과를 검증하는 것이다. NDIS는 실생활의 문제를 학습자가 스스로 찾고 사용자의 요구사항을 분석하여 설계하고 구현하는 프로젝트형 학습 모형이다. 이러한 NDIS의 효과를 검증하기 위해 SW 교육 수업 경험이 있는 중급 수준의 G 교육대학교 학생을 대상으로 실험하였다. 비교반에는 전통적인 프로젝트 모형을 적용하였고, 실험반에는 CT 기반의 NDIS 모형을 적용하였다. 실험반은 비교반에 비해 높은 CT 서술형 수행평가 점수를 보였으며 이는 유의미한 차이를 보였다. 또한, 학생들은 컴퓨팅을 이용한 실생활 문제 해결에 대한 자신감과 CT 향상에 대해 긍정적인 인식을 보였다.

• 한국주거학회:학술대회논문집
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• 한국주거학회 2008년 추계학술발표대회 논문집
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• pp.475-478
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• 2008

In Korea, there has been a tendency that multi-family housings are constructed by providers such as constructors or real estate agents for the economical benefits and selling efficiency, using standardized plans, load-bearing wall system, water-based construction method, and uniformized formworks. Especially, the traditional installation works which service equipments are buried into structures cause serious problems such as shortening building life span, increasing times of remodeling during specific period (100 years) and wasting resources. Also the unilateral way of massive distribution by providers for multi-family housings is not appropriate to meet the various social needs of residents. To solve these problems, it is necessary to build long-life housing which can be easily separated installations, interior and exterior finishings from structural parts. Therefore, this paper will examine the present administrative law and the civil law in order to find negative factors that can be obstructions for providing long-life housings and set the direction to revise the regulations.

• 한국환경교육학회지:환경교육
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• 제11권2호
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• pp.14-25
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• 1998

The Quality of human living depends on the environmental quality of the region sustaining the life. The environmental deterioration of the modern society is due to mechanical environmentalism. For the better quality of the life, The changes of recognition and attitude on the environments are required. These changes of mind are also important in environmental education for teenagers. The 7th national curriculum, officially anounced December 1998, focuses on the change of attitude to environments and practical behavior in real life for “Environments”, the environmental education curriculum in middle school. Basic elements of the curriculum are cultivation of the pro-environmental thinking, multi-levelling of teaching materials and methods, and encouraging of student participating activity. Actually, the curriculum construction is composed of stepped-levelling of teaching and learning, reasonable contents volume, encouraging of student practice, and suggesting of evaluation standards of textbook writing. Three main subjects of environmental education for middle school consist of (1) man and environment, (2) recognition of environmental problem, and (3) protection activity for environment. Methodology of environmental education can include multi-disciplinary approaches, variable teaching methods, and continuing evaluation of student practice and participation attitude. Environmental education for teenagers relating to the 7th national curriculum focuses on recognition of the environmental problems and practice activity in daily life. The recognition includes considering relationship of human life to environment, solving environmental problems in regional context, and development of comprehensive understanding concept of the environments. For the practice education, variable teaching methods, such as field survey and application of multi-media, are needed.

• 제어로봇시스템학회논문지
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• 제6권8호
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• pp.697-702
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• 2000

The paper considers the problem of improving the productivity of surface mounting in the printed circuit board(PCB) assembly line. This problem is generally divided into two problems ; real assignment problem and pick-and -place sequencing problem which are known to have no polynomial time algorithms. In the last ten years algorithm designers have been trying to solve them separately. However they need to be solved jointly because they are highly interrelated. This paper proposes an evolutionary algorithm which can consider the two problems jointly and thus yield a better solution. In order to evaluate the proposed algorithm computer simulation is performed on real-life surface mounting machines. The proposed algorithm is expected to reduce the assembly time of surface mounting machines and thus improve the productivity.

• 한국학교수학회논문집
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• 제9권2호
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• pp.141-161
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• 2006

Freudenthal의 '현실주의 수학교육'(realistic mathematics education)에 따르면, 학교수학은 경험적이고 실제적인 맥락에서 출발하여 교사의 안내를 거치면서 재발명하는 경험을 제공해야 한다. 그러나 오늘날 학생들은 학교수학을 학습하는 과정에서 오히려 수학을 현실과 구분하는 경향이 있다. 본 연구는 실제적인 맥락 속에서 학교수학을 다루기 위한 노력으로, 맥락문제를 개발 적용하여 그 결과를 분석한 것이다. 맥락문제는 실생활과 관련된 상황만을 단편적으로 담는 것이 아니라, 장소와 이야기를 비롯하여 프로젝트, 주제, 스크램 등의 형태에서 계속해서 제시되며, 학교수학에서 다루는 다양한 수학적인 내용을 일정한 맥락과 함께 유기적으로 연결시키는 것이다. 본 연구는 일차적으로 우리나라 초등수학 교과서(4-가, 나)에 제시된 실생활 관련 문장제를 5가지 맥락문제의 유형(장소, 이야기, 프로젝트, 스크랩, 주제)으로 구분하여 검토해보았다. 다음으로 초등수학 교육과정에 맞추어 유형별 맥락 문제를 개발하고 이것을 실제수학 수업에 교수-학습 자료로 적용하였으며, 유형별 맥락문제가 초등학생의 수학적 신념 및 태도에 어떠한 변화를 가져오는지를 살펴보았다 또한 학업성취도에 따라 학생들이 선호하는 맥락문제의 유형과 그 이유에 대해 분석하였다.

• 한국과학교육학회지
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• 제27권4호
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• pp.309-317
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• 2007

이 연구는 우리 과학수업환경에 적합한 문제해결 모형 및 학습자의 문제해결 활동 단계를 안내하는 활동도구를 개발하고, 이를 과학수업에 적용하여 중학생들의 문제해결 활동에 대한 인식을 알아보는데 있다. IDEAL, CPS, SSCS 문제해결 모형을 고찰하여, 문제해결 단계를 문제탐색, 계획실행, 결과발표, 발표평가 등의 4단계 선정하였다. 그리고 문제해결 단계별 활동요소를 선정하여 각각의 문제해결 단계를 안내하는 활동도구를 각각 개발하였다. 중학교 1학년 2개 학급 과학수업에 개발한 문제해결 모형 및 활동도구를 적용하여 중학생들의 문제해결 활동에 대한 인식을 조사하였다. 문제해결 활동은 과학수업에 더 참여적이고, 흥미를 갖게 하며, 실생활의 문제를 해결하는데 도움을 준다고 응답하였다. 따라서 문제해결 활동은 중학생들의 과학수업에 대한 긍정적인 인식을 갖게 하는데 유용한 교수학습활동이며 또한 실생활 소재의 문제해결 활동은 생활 주위에서 일어나는 문제에 흥미와 호기심을 가지고 실생활의 문제를 해결하려는 태도를 기르는데 유용한 교수학습활동이라 사료된다.

• 영어어문교육
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• 제9권spc호
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• pp.1-17
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• 2003

This paper aims to propose that Problem-Based Learning (PBL) is a method that can help meet the conditions in language learning and instruction. PBL was first used in medical education, where learners engaged in problem-solving activities that reflect the demands of real-life professional practice, thus promoting critical thinking in the content domain. The paper proposes that by applying PBL in language learning and creating situations in which learners work collaboratively on problems, the learners benefit in two respects: (i) they have the opportunity to practise the kind of thinking skills and problem-solving strategies needed in real life, and (ii) they engage in purposeful language activity with others through discussion and negotiation. The paper first provides a theoretical rationale far the use of PBL in language learning and suggests attendant changes in the role of a language instructor in a PBL context. The paper then presents an outline of the stages and components needed in designing an online PBL Unit far use in an undergraduate language class.

• 한국수학교육학회지시리즈A:수학교육
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• 제55권2호
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• pp.209-232
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• 2016

This study analyzed the process of steps in a program introducing Renzulli's enrichment triad model and various levels of posing open-ended problems of those who participated in the program for mathematics-gifted elementary students. As results, participants showed their abilities of problem posing related to real life in a program introducing Renzulli's enrichment triad model. From eighteen mathematical responses, gifted students were generally outstanding in terms of producing problems that demonstrated high quality completion, communication, and solvability. Amongst these responses from fifteen open-ended problems, all of which showed that the level of students' ability to devise questions was varied in terms of the problems' openness (varied possible outcomes), complexity, and relevance. Meanwhile, some of them didn't show their ability of composing problem with concepts, principle and rules in complex level. In addition, there are high or very high correlations among factors of mathematical problems themselves as well as open-ended problems themselves, and between mathematical problems and open-ended problems. In particular, factors of mathematical problems such as completion, communication, and solvability showed very high correlation with relevance of the problems' openness perspectives.

• Nonlinear Functional Analysis and Applications
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• 제28권2호
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• pp.497-520
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• 2023

Numerous problems in science and engineering defined by nonlinear functional equations can be solved by reducing them to an equivalent fixed point problem. Fixed point theory provides essential tools for solving problems arising in various branches of mathematical analysis, such as split feasibility problems, variational inequality problems, nonlinear optimization problems, equilibrium problems, complementarity problems, selection and matching problems, and problems of proving the existence of solution of integral and differential equations.The theory of fixed is known to find its applications in many fields of science and technology. For instance, the whole world has been profoundly impacted by the novel Coronavirus since 2019 and it is imperative to depict the spread of the coronavirus. Panda et al. [24] applied fractional derivatives to improve the 2019-nCoV/SARS-CoV-2 models, and by means of fixed point theory, existence and uniqueness of solutions of the models were proved. For more information on applications of fixed point theory to real life problems, authors should (see [6, 13, 24] and the references contained in).

• Journal of Information Processing Systems
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• 제7권1호
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• pp.1-16
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• 2011

With the increasing number of vehicles in use in our daily life and the rise of traffic congestion problems, many methods and models have been developed for real time optimisation of traffic lights. Nevertheless, most methods which consider real time physical queue sizes of vehicles waiting for green lights overestimate the optimal cycle length for such real traffic control. This paper deals with the development of a generic hybrid model describing both physical traffic flows and control of signalised intersections. The firing times assigned to the transitions of the control part are considered dynamic and are calculated by a simplified optimisation method. This method is based on splitting green times proportionally to the predicted queue sizes through input links for each new cycle time. The proposed model can be easily translated into a control code for implementation in a real time control system.