• 한국실천공학교육학회논문지
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• 제4권2호
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• pp.1-6
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• 2012

전공과목과 더불어 학습자들에게 창의적인 문제 해결 능력을 교육하기 위한 창의적 사고 기법의 중요성이 대두되고 있다. 실무 현장에서도 전공 능력과 창의력의 동시 함양을 강조하고 있다. 창의적 문제 해결 능력이 중요시되고 있는 상황에서 창의적 문제 해결 기법인 CPS는 빠르고 명확한 문제 해결의 가능성이 높은 기법이라고 할 수 있다. 본 연구에서 활용한 CPS는 문제의 원인을 체계적으로 정의하고 단계별 분석을 통해 명확한 아이디어를 도출할 수 있도록 하는 5단계 가이드를 제시한다. 또한, 적용범위가 넓어 실무 현장의 다양한 문제를 분석하고 명확히 평가할 수 있다. 본 연구에서는 CPS 5단계를 활용하여 창의적 문제 해결 능력 배양을 위한 실습교육을 학습자들에게 제공한 결과를 바탕으로 창의적 문제 해결 능력 실습에 필요한 과정을 제안하였다.

• 한국지구과학회지
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• 제23권2호
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• pp.147-153
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• 2002

Reasonable and reliable assessment method is one of the most important issues in science education, Partial credits method is an effective tool for assessing students' science inquiry problem solving. The purposes of this study were to classify the Problem solving types based on the analysis of the thinking Process, and how much the related science concept and the science process skills were used in solving science inquiry problems, and to describe the possibility and rationality of the assessment method that gives partial credit 128 high school seniors were selected and their answers were analyzed to identify science concepts they used to solve each problem, and the result was used as the criterion in the scientific concept test development. Also, to study the science inquiry problem solving type, 152 high school seniors were selected, and protocols were made from audio-taped data of their problem solving process through a think-aloud method and retrospective interviews. In order to get a raw data needed in statistical comparison of reliability, discrimination and the difficulty of the test and the production of the regression equation that determines the ratio of partial credit, 640 students were selected and they were given a science inquiry problem test, a science process skills test, and a scientific concept test. Research result suggested it is more reasonable and reliable to switch to the assessment method that applies partial credit to different problem solving types based on the analysis of the thinking process in problem solving process, instead of the dichotomous credit method.

• 한국초등과학교육학회지:초등과학교육
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• 제17권1호
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• pp.75-87
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• 1998

The problem solving processes of elementary school children who are talented in science have been seldom studied. Researchers often resort to thinking aloud method to collect data of problem solving processes. The major purpose of the study is investigating high ability elementary school students' problem solving processes through the analysis of written responses to science problems in everyday context. 67 elementary students were participated Chungcheongbuk-do Elementary Science Contest held on October, 1997. The written responses of the contest participants to science problems in everyday context were analyzed in terms of problem solving processes. The findings of the research are as follows. (1) High ability elementary students use various concepts about air and water in the process of problem solving. (2) High ability elementary students use content specific problem solving strategies. (3) The problem solving processes of the high ability elementary students consist of problem representation, problem solution, and answer stages. Problem representation stage is further divided into translation and integration phases. Problem solving stage is composed of deciding relevant knowledge, strategy, and info..ins phases. (4) High ability elementary students' problem solving processes could be categorized into 11 qualitatively different groups. (5) Students failures in problem solving are explained by many phases of problem solving processes. Deciding relevant knowledge and inferring phases play major roles in problem solving. (6) The analysis of students' written responses, although has some limitations, could provide plenty of information about high ability elementary students' problem solving precesses.

• 한국수학교육학회지시리즈E:수학교육논문집
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• 제37권4호
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• pp.653-674
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• 2023

수학과 교육과정에서 수학 문제해결력 신장, 수학 문제만들기 등이 꾸준히 강조되고 있다. 본 연구에서는 Brown & Walter가 제안한 what-if-not 방법과는 다른 방향의 문제만들기 방법을 연구하였다. 여기서 다루는 문제만들기 방법에서는 출발점 문제의 문제해결 과정을 분석하여 그 구성 요소들을 변화시키며, 얻어진 변화를 바탕으로 문제해결 과정을 역으로 거슬러 올라가면서 새로운 문제, 즉 출발점 문제를 변형시킨 문제를 만들었다. 이러한 순서로 문제를 만들면, 문제해결 과정으로부터 새로운 변형된 문제가 유도될 수 있다. 즉, 문제해결 과정이 문제에 선행하게 되며, 본 연구에서는 이러한 문제만들기 방법을 연역적 문제만들기라고 명명하였다. 특히, 연역적 문제만들기의 다양한 사례들, 특징들을 구체적으로 제시하였으며, 치환을 이용하여 로그가 포함된 방정식으로부터 지수, 무리식, 삼각함수가 포함된 방정식 등을 만드는 과정을 소개하였다. 연역적 문제만들기는 문제해결의 반성 단계에서 문제해결 결과를 검증하고 확장하는 활동과 관련될 수 있으며, 수학 교사가 개념 정착, 복습 등과 같은 교수학적 목적에 따라 기존 문제를 변형시킬 때도 활용할 수 있을 것으로 기대된다.

• International Journal of Internet, Broadcasting and Communication
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• 제11권3호
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• pp.49-58
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• 2019

Efficient evidential reasoning is an important issue in the development of advanced knowledge based systems. Efficiency is closely related to the design of problems solving methods adopted in the system. The explicit modeling of problem-solving structures is suggested for efficient and effective reasoning. It is pointed out that the problem-solving method framework is often too coarse-grained and too abstract to specify the detailed design and implementation of a reasoning system. Therefore, as a key step in developing a new reasoning scheme based on properties of the problem, the problem-solving method framework is expanded by introducing finer grained problem-solving primitives and defining an overall control structure in terms of these primitives. Once the individual components of the control structure are defined in terms of problem solving primitives, the overall control algorithm for the reasoning system can be represented in terms of a finite state diagram.

• 한국수학사학회지
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• 제32권6호
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• pp.281-299
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• 2019

Mathematical problem solving has become a major concern in school mathematics, and methods to enhance children's mathematical problem solving abilities have been the main topics in many mathematics education researches. In addition to previous researches about problem solving, the development of a mathematical problem solving method that enables children to establish mathematical concepts through problem solving, to discover formalized principles associated with concepts, and to apply them to real world situations needs. For this purpose, I examined the necessity of problem solving education and reviewed mathematical problem solving researches and problem solving models for giving the theoretical backgrounds. This study suggested the problem solving approach based on the intuitive and the formal inquiry which are the basis of mathematical discovery and inquiry process. And it is developed to keep the balance and complement of the conceptual understanding and the procedural understanding respectively. In addition, it consisted of problem posing to apply the mathematical principles in the application stage.

• 대한산업공학회지
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• 제17권2호
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• pp.131-142
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• 1991

The concept of criterion function is proposed as a framework for comparing the geometric and computational characteristics of various nonlinear programming approaches to linear programming such as the method of centers, Karmakar's algorithm and the gravitational method. Also, we discuss various computational issues involved in obtaining an efficient parallel implementation of these methods. Clearly, the most time consuming part in solving a linear programming problem is the direction finding procedure, where we obtain an improving direction. In most cases, finding an improving direction is equivalent to solving a simple optimization problem defined at the current feasible solution. Again, this simple optimization problem can be seen as a least squares problem, and the computational effort in solving the least squares problem is, in fact, same as the effort as in solving a system of linear equations. Hence, getting a solution to a system of linear equations fast is very important in solving a linear programming problem efficiently. For solving system of linear equations on parallel computing machines, an iterative method seems more adequate than direct methods. Therefore, we propose one possible strategy for getting an efficient parallel implementation of an iterative method for solving a system of equations and present the summary of computational experiment performed on transputer based parallel computing board installed on IBM PC.

• 아동학회지
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• 제25권3호
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• pp.15-26
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• 2004

The problem solving activities developed for this formal assessment program are based on familiar, real life problems. Responses of third and fourth grade subjects to problem solving items were assessed by problem solving ability, reasoning, and imagination/creativity. Reliability of problem solving activities was supported by the results of interrater reliability and Cronbach's alpha. Correlations between problem solving activities and the Naglieri Nonverbal Ability Test(NNAT: 1985) showed that cluster scores on the NNAT were significantly related to each score on the problem solving activities. Problem solving by gender showed that girls were more likely to express ideas than boys. There were also differences related to grade level on some items.

• 한국수학교육학회지시리즈C:초등수학교육
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• 제11권2호
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• pp.121-139
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• 2008

수학 교실에서 가치 있는 수학적 과제는 학생들에게 수학적 아이디어를 제공하고 지적으로 흥미를 갖고 도전해 보게 한다. 최근 수학적 과제에 대한 중요성은 여러 측면에서 강조되고 있다. 특히 과제에 따라 학생들의 수업 참여도가 달라지고 수업 시간의 활동이 결정된다는 연구 결과와 학습 기회는 학생들이 참여하는 과제의 사고 수준과 사고 종류에 의해 결정된다는 주장은 교수 학습 과정에서의 과제의 중요성을 한층 더 부각시키고 있다. 이에 본 연구는 다양하고 실제적인 과제 제시 및 해결 활동에 대한 구체적인 이해를 위하여 연구자의 개입이 없는 자연스러운 교실 상황 내에서 교수 학습 활동을 관찰하고자 한다. 교수 학습 활동에서 나타나는 교사의 과제 제시 방법, 과제 해결을 위한 기회 제공 방법, 과제 해결 시 나타나는 교사의 행동을 분석하여 각 관점에 따른 교사의 행동 유형을 분류해 보고, 이를 통해 수학적 소양과 수학적 힘을 신장시킬 수 있는 학생 중심의 개혁적인 수학 교실 수업 실현을 위한 기초적인 정보를 제공하고자 하는데 그 목적이 있다.

• International Journal of Advanced Culture Technology
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• 제9권1호
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• pp.168-176
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• 2021

This study developed and evaluated a learning model to improve collaborative problem-solving skills for nursing students taking physiology courses. This one-group pretest-posttest design used the jigsaw cooperative learning method on 30 nursing students from one local university. We analyzed the effect of a cooperative problem- solving learning model using SPSS 21.0 to compare changes in the students' collaborative self-efficacy, problem-solving abilities, and team-member exchange. As a result, the participants showed significant increases in collaborative self-efficacy, problem-solving ability, and team-member exchange after experiencing cooperative problem- solving learning model. Therefore, we will help nursing students improve their communication skills by enhancing their collaborative self-efficacy and help them solve problems effectively in conflict situations.