• 산업경영시스템학회지
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• 제20권41호
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• pp.231-242
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• 1997

This paper describe an approximation method for solving the minimum makespan problem of job shop scheduling with fuzzy processing time. We consider the multi-part production scheduling problem in a job shop scheduling. The job shop scheduling problem is a complex system and a NP-hard problem. The problem is more complex if the processing time is imprecision. The Fuzzy set theory can be useful in modeling and solving scheduling problems with uncertain processing times. Lee-Li fuzzy number comparison method will be used to compare processing times that evaluated under fuzziness. This study propose heuristic algorithm solving the job shop scheduling problem under fuzzy environment. In This study the proposed algorithm is designed to treat opinions of experts, also can be used to solve a job shop environment under the existence of alternate operations. On the basis of the proposed method, an example is presented.

• 간호행정학회지
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• 제16권2호
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• pp.190-197
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• 2010

Purpose: The purpose of this study was to investigate factors which influence freshmen nursing students' problem solving abilities. Method: The data were collected from 119 students by means of self-reported questionnaires measuring problem solving abilities, critical thinking disposition, and self-directed learning, on March 7th and 11th, 2010. Result: For problem solving ability categories, the level of problem discovery was the highest followed by solution plan, problem definition, solution evaluation and solution implementation. The influencing factors on problem solving abilities of nursing students were critical thinking disposition, self-directed learning and gender. Conclusion: Using the results of this study as a foundation, nursing education curriculum should be comprised of critical thinking skills and self-directed skills for the improvement of nursing students' problem solving abilities. It is also recommended that further studies be conducted in order to investigate comprehensive curriculum designs that allow for maximum accumulation of these proficiencies.

• 한국수학교육학회지시리즈C:초등수학교육
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• 제14권2호
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• pp.187-206
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• 2011

1980년대 이후로 현재까지 수학적 문제해결은 수학교육학의 주요 연구 주제 중의 하나로 자리매김하고 있다. 초창기에는 문제 그 자체에 대한 연구, 학습자들이 문제를 해결하는 방법 및 메타인지에 대한 연구, 교수학습 방법에 대한 연구 등 다양한 방법에서 연구가 진행되었으며, 최근 들어서는 문제해결을 통한 수학교육 및 모델링을 통한 문제해결이 연구자들의 관심을 끌고 있다. 이처럼 문제해결과 관련된 연구주제들은 변하면서도 지속적으로 연구자들의 관심을 끌고 있다. 따라서, 수학적 문제해결 영역에서 미래에 어떤 주제들이 더 연구될 필요가 있는지를 델파이를 기법을 통해서 알아보았다.

• 정보교육학회논문지
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• 제18권2호
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• pp.243-254
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• 2014

정보화 사회에서 필요한 능력은 정보 능력을 바탕으로 한 문제 해결 능력의 습득이며 이러한 핵심 역량에 대한 교육 필요성과 함께 급변하는 정보화 사회에서 새로운 기술의 발전과 사회 환경의 변화로 인하여 교육 과정을 새롭게 구성해야 할 필요가 발생하였다. 따라서 한국정보교육학회에서는 정보 교과의 내용 체계에 대한 개정안에 대하여 연구하였으며, 정보 교육 내용을 '소프트웨어' '컴퓨터 시스템' 및 '융합 활동'의 세 영역으로 구분하였다. 이에 따라 본 논문에서는 '소프트웨어' 영역의 '문제 해결' 주제에 대하여 초등학교 1학년부터 중학교 3학년까지의 교육과정을 연구하였다. 먼저 '문제 해결'의 교육 내용을 '문제 이해 및 분석', '데이터 관리', '문제 해결 전략 수립', '문제 해결 방법 탐색 및 개발' 및 '문제 해결 방법 검토' 등으로 분류하고 이에 대한 성취 기준을 제시하였다. 그리고 이 성취 기준을 도달하기 위한 교수 학습 방법과 평가 방안을 학년군 별로 세분화하여 제시하였다. 본 연구에서 제시한 '문제 해결'에 대한 교육과정을 정보화 사회에 필요한 인재 양성에 기여할 것으로 기대된다.

• 지식경영연구
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• 제16권3호
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• pp.65-80
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• 2015

Problems solved by the TRIZ method have been developed and applied in many fields ranging from management as well as engineering. Most of the problems occurring in the construction site should be applied immediately. To solve the problem of building engineering, formulation of the problem solving process using the TRIZ method is needed. This study classified and analyzed the problem solving process of architectural engineering technology in accordance with the procedures of TRIZ, and showed the case of solving problem in the field and the availability of TRIZ theory in architectural engineering. This paper shows that the TRIZ theory can be used as a tool for creative problem solving and cost reduction in architectural engineering.

• 한국과학교육학회지
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• 제14권2호
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• pp.143-158
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• 1994

This study aims to identify the characteristics of gas phase problem solving of college freshmen. Four students were participated in this study and solved the problem by using think-aloud method. The thinking processes were recorded and transferred into protocols. Problem solving stage, the ratio spended in each solving stage, solving strategy, misconceptions, and errors were identified and discussed. The relationships between students' belief system about chemistry problem solving and problem solving characteristics were also investigated. The results were as follows: 1. Students felt that chemical equation problem was easier than word problem or pictorial problem. 2. When students had declarative knowledge and procedural knowledge required by given problem, their confidence level and formula selection were not changed by redundunt information in the problem. 3. When the problem seemed to be difficult, students tended to use the Means-End or Random strategy. 4. In complicated problems, students spent longer time for problem apprehension and planning. In familiar problems, students spent rather short time for planning. 5. Students spent more time for overall problem solving process in case of using Means-End or Random strategy than using Knowledge-Development strategy.

• Educational Technology International
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• 제6권2호
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• pp.69-85
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• 2005

The purpose of the article is to address a new instructional approach to a complex engineering course. We design a novel instructional method that combines mobile technology, simulation program, collaborative teamwork, problem-solving process, and a variety of evaluation techniques. We suggested five instructional principles that might be required to change the fundamental educational process by which learning is done. The proposed instructional method is expected to aspire for new perspectives on complex learning environment. Nevertheless we solely began by the research on the development of students' complex problem-solving performance in a complex engineering course, the new instructional method in the article can promote the adoption of new instructional methods and strategies across different knowledge domains. In addition, the instructional method can provide a valuable bridge to acquisition and transfer of problem solving, motivation, and meaning learning.

• 한국수학교육학회지시리즈A:수학교육
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• 제39권2호
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• pp.101-125
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• 2000

Since the 1980\`s metacognition has been one of the core subjects in the studies on mathematical education, the purpose of this study is to examine and analyze the mathematical creativity, problem-solving ability, and beliefs of math of middle school using the metacognition learning method. The results of this study is as follows; the first, we found that the metacognition learning methods were more effective method than classic method to improve the creativity and the problem-solving ability in math.

• 대한수학교육학회지:학교수학
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• 제1권2호
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• pp.617-636
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• 1999

This study was executed with the intention of guiding ‘open education’ toward a desirable school innovation. The basic two directions of curriculum reconstruction essential for implementing ‘open education’ are one toward intra-subject (within a subject) and inter-subject (among subjects). This study showed an example of intra-subject curriculum reconstruction with a problem solving area included in elementary mathematics curriculum. In the curriculum, diverse strategies to enhance ability to solve problems are included at each grade level. In every elementary math textbook, those strategies are suggested in two chapters called ‘diverse problem solving’, in which problems only dealing with several strategies are introduced. Through this method, students begin to learn problem solving strategies not as something related to mathematical knowledge or contents but only as a skill or method for solving problems. Therefore, problems of ‘diverse problem solving’ chapter should not be dealt with separatedly but while students are learning the mathematical contents connected to those problems. Namely, students must have a chance to solve those problems while learning the contents related to the problem content(subject). By this reasoning, in the name of curriculum reconstruction toward intra-subject, this study showed such case with two ‘diverse problem solving’ chapters of the 4th grade second semester's math textbook.

• 산업경영시스템학회지
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• 제45권3호
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• pp.139-149
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• 2022

Korea's Corona 19(COVID-19) quarantine, referred to as 'K-Quarantine', is a globally recognized quarantine system that has achieved both conflicting goals: health and economy. The quarantine system represented by 3T(Test-Trace-Treat) is not a method of blocking an area, but a method of screening and treating infected and non-infected persons. The screening center, one of the key elements of this screening treatment system, has evolved to suit the timing and situation of COVID-19, and has succeeded in initial response by conducting large-scale tests quickly and safely. By analyzing the evolution of screening centers that produced such significant results from a problem-solving point of view, it proved its meaning as a practical success case of creative problem-solving. In addition, the usefulness of TRIZ (Russian abbreviation of Theory of Solving Inventive Problem), a creative problem-solving theory, was confirmed through an analysis of actual verified cases of COVID-19 response. TRIZ is a problem-solving theory created by analyzing the regularity of invention patents, and is widely used not only in the technical field but also in the non-technical fields such as design, management, and education. The results of this study are expected to provide useful meaning and practical examples to researchers interested in system analysis and TRIZ application from a problem-solving perspective.