• 한국과학교육학회지
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• 제32권2호
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• pp.210-235
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• 2012

본 연구에서는 중학생들의 과학 창의적 문제 해결능력을 측정하기 위해 타당도와 신뢰도가 높은 검사도구를 개발하였다. 먼저 과학 창의적 문제 해결 능력에 대한 조작적 정의를 바탕으로 3차원 평가 틀(과학내용, 과학 탐구 기능, 사고력)을 개발하였으며, 이 평가 틀에 맞추어 평가 문항을 개발하였다. 현장 과학 교사들의 검토를 거쳐 예비 검사에 투입할 3과제로 구성된 4개 문항을 확정하였고, 예비 검사 결과를 바탕으로 각 문항의 구체적인 채점 기준과 배점을 결정하였다. 완성된 최종 검사 도구는 내용 및 평가 기준에 대한 과학 교육 전문가와 현장 교사들의 타당도 검증을 거친 후 중학교 1, 2, 3학년 320명에게 투입되었으며, 채점 결과를 바탕으로 채점자간 신뢰도를 검증받았다. 채점 결과 문항 난이도와 변별도 역시 적절한 것으로 나타났다. 앞으로 본 연구에서 개발한 평가 틀과 평가 기준을 활용하여 다양한 학교 급에 적용할 수 있는 다양한 수준의 과학 창의적 문제 해결 능력 평가도구의 개발이 지속적으로 이루어져야 할 것이다.

• 대한수학교육학회지:학교수학
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• 제13권1호
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• pp.155-173
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• 2011

본 연구는 문장제를 표상하는 능력의 신장을 목적으로, 문장제를 시각적 스키마의 형태로 유형화하여 학생들에게 제시하는 스키마 기반 프로그램을 구성하고 그 효과성을 검증하고자 하였다. 초등학교 2학년 60명 학생들을 실험조건과 비교조건에 무선배치하고 초등학교 2학년 수학-가 두 개 단원의 내용을 정하여 실험조건에는 시각적 스키마 기반 프로그램(Visual Schema Based Program)을 제시하고 비교조건에는 현교육현장에서 활용되는 교사용 지도서에 근거하여 다이어그램이나 그래프와 같은 문제해결 전략을 제시하는 수업을 실시하였다. 프로그램 효과를 검증하기 위해 사전 검사를 공변인으로 하는 일원 공변량분석(Oneway ANCOVA)을 실시한 결과 스키마 조건의 학생들이 유의미하게 높은 문제해결력을 보여주었으며 이와 같은 결과는 사전 및 사후검사에서 사용된 문장제의 난이도를 고려했을 때 더욱 두드러지는 차이를 보여주었다. 더 나아가서 실험조건에 있는 학생들이 스키마를 사용하는 빈도와 문제에서 요구되는 스키마를 얼마나 정확하게 활용했는지에 따라 문제해결능력에 관계가 있는 지 분석한 결과 도구의 사용빈도와는 .50, 그리고 도구 사용의 정확성과 는 .58의 높은 상관관계가 있는 것으로 나타났다. 이와 같은 결과는 문제의 표상과 문장제 해결이 서로 높은 관계가 있으며 스키마 기반 프로그램이 문제의 표상능력을 높이며 문제해결력 향상에 긍정적인 영향을 미친다는 것을 보여준다.

• 한국영재학회:학술대회논문집
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• 한국영재학회 2001년도 춘계 학술세미나
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• pp.43-72
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• 2001

Identification and discrimination the mathematical giftedness must be based on it's definition and factors. So, there must be considered not only IQ or high ability in mathematical problem solving, but also mathematical creativity and mathematical task commitment. Furthermore, we must relate our ideas with the programs to develop each student's hidden potential not to settle only. This study is focused on the discrimination of the recipients who would like to enter the elementary school level mathematical gifted education program. To fulfill this purpose, I considered the criteria, principles, methods, tools and their application. In this study, I considered three kinds of testing tools. The first was KEDI - WISC personal IQ test, the second is mathematical problem solving ability written test(1st type), and the third was mathematical creativity test(2nd type) which were giving out divergent products. The number of the participant of these tests were 95(5-6 grade). According to the test, students who had ever a prize in the level of national mathematical contest got more statistically significant higher scores on 1st and 2nd type than who had ever not, but they were not prominent on the phases of attitude, creative ability or interest and willing to study from the information of the behavior characteristics test. Using creativity test together with the behavior characteristics test will be more effective and lessen the possibility of exclusion the superior.

• 성인간호학회지
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• 제23권1호
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• pp.50-59
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• 2011

Purpose: This study investigated the degree of acculturation stress among North Korean Defectors and the coping method that they used to deal with it. Methods: Ninety-nine participants of this study were North Korean Defectors in Seoul and Daejeon. The tools of survey for this study were acculturation stress and stress-coping. Results: The score for acculturation stress among North Korean Defectors was $2.97{\pm}0.47$ which was a moderate level of stress. The score of problem-solving coping was $3.10{\pm}0.47$ and emotional coping got $2.85{\pm}0.52$. On acculturation stress, there were higher scores among people who were old-aged, married, low educational levels, dissatisfied with job, low monthly income, and living alone. On problem-solving coping, there were higher score among people who have jobs. Regarding emotional coping, there were higher score in people who have jobs, dissatisfaction with job, and living alone. The higher the problem-solving coping skill, the less the acculturation stress. Conclusion: Reducing of acculturation stress and increasing adaptation mechanism of North Korean Defectors are very important due to the results of this study. Therefore, adaptation programs like psycho-social counseling should be created for North Korean Defectors.

• 한국수학교육학회지시리즈A:수학교육
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• 제54권1호
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• pp.65-81
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• 2015

The purpose of this study is to investigate the international trends of how the core competencies are reflected in mathematics curriculum, and to find the implications for the revision of Korean mathematics curriculum. For this purpose, the curriculum of the 9 countries including the U.S., Canada(Ontario), England, Australia, Poland, Singapore, China, Taiwan, and Hong Kong were thoroughly reviewed. It was found that a variety of core competencies were reflected in mathematics curricula in the 9 countries such as problem solving, reasoning, communication, mathematical knowledge and skills, selection and use of tools, critical thinking, connection, modelling, application of strategies, mathematical thinking, representation, creativity, utilization of information, and reflection etc. Especially the four most common core competencies (problem solving, reasoning, communication, and creativity) were further analyzed to identify their sub components. Consequently, it was recommended that new mathematics curriculum should consider reflecting various core competencies beyond problem solving, reasoning, and communication, and these core competencies are supposed to combine with mathematics contents to increase their feasibility. Finally considering the fact that software education is getting greater attention in the new curriculum, it is necessary to incorporate computational thinking into mathematics curriculum.

• 한국수학교육학회지시리즈A:수학교육
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• 제63권2호
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• pp.233-254
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• 2024

This paper delves into the symbiotic integration of coding and mathematics education, aimed at cultivating computational thinking and enriching mathematical problem-solving proficiencies. We have identified a corpus of scholarly articles (n=38) disseminated within the preceding two decades, subsequently culling a portion thereof, ultimately engendering a contemplative analysis of the extant remnants. In a swiftly evolving society driven by the Fourth Industrial Revolution and the ascendancy of Artificial Intelligence (AI), understanding the synergy between these domains has become paramount. Mathematics education stands at the crossroads of this transformation, witnessing a profound influence of AI. This paper explores the evolving landscape of mathematical cognition propelled by AI, accentuating how AI empowers advanced analytical and problem-solving capabilities, particularly in the realm of big data-driven scenarios. Given this shifting paradigm, it becomes imperative to investigate and assess AI's impact on mathematics education, a pivotal endeavor in forging an education system aligned with the future. The symbiosis of AI and human cognition doesn't merely amplify AI-centric thinking but also fosters personalized cognitive processes by facilitating interaction with AI and encouraging critical contemplation of AI's algorithmic underpinnings. This necessitates a broader conception of educational tools, encompassing AI as a catalyst for mathematical cognition, transcending conventional linguistic and symbolic instruments.

• Advances in Computational Design
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• 제7권1호
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• pp.1-17
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• 2022

In this study, a new strategy is presented to transmit the fundamental elastic beam problem into the modern optimization platform and solve it by using artificial intelligence (AI) tools. As a practical example, deflection of Euler-Bernoulli beam is mathematically formulated by 2nd-order ordinary differential equations (ODEs) in accordance to the classical beam theory. This fundamental engineer problem is then transmitted from classic formulation to its artificial-intelligence presentation where the behavior of the beam is simulated by using neural networks (NNs). The supervised training strategy is employed in the developed NNs implemented in the heuristic optimization algorithms as the fitness function. Different evolutionary optimization tools such as genetic algorithm (GA) and particle swarm optimization (PSO) are used to solve this non-linear optimization problem. The step-by-step procedure of the proposed method is presented in the form of a practical flowchart. The results indicate that the proposed method of using AI toolsin solving beam ODEs can efficiently lead to accurate solutions with low computational costs, and should prove useful to solve more complex practical applications.

• 한국멀티미디어학회논문지
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• 제18권11호
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• pp.1375-1382
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• 2015

This paper aims to introduce the numerical methods for solving the optimal control theory to model bufferbloat problem. Mathematical tools are useful to provide insight for system engineers and users to understand better about what we are facing right now while experiment in a large-scale testbed can encourage us to implement in realistic scenario. In this paper, we introduce a survey of the numerical methods for solving the optimal control problem. We propose the dynamic optimization sweeping algorithm for optimal control of the active queue management. Simulation results in network simulator ns2 demonstrate that our proposed algorithm can obtain the stability faster than the others while still maintain a short queue length (≈10 packets) and low delay experience for arriving packets (0.4 seconds).

• 지식경영연구
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• 제8권2호
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• pp.1-16
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• 2007

This paper describes the Blue Ocean Strategy and Business TRIZ (Russian Theory of Inventive Problem Solving) Tactics as one method for knowledge creation and innovation. The opening new market avoiding keen competition is very popular recently and is not just prosper, but survival problem. As one new strategy for finding new market, the Blue Ocean Strategy gives the big blueprint for new market, but has no enough tools to make more concrete ideas. In this paper, we suggest using the Strategy Campus and other tools in the Blue Ocean Strategy at initial stage and then, compensating the TRIZ principles to make more concrete ideas for new market as tactics. We applied it to find the new market for conventional newspaper industry and EBS (Education Broadcast System) management innovation in Korea as case studies and got better results comparing to using only the Blue Ocean Strategy.

• 한국초등수학교육학회지
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• 제10권1호
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• pp.1-19
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• 2006

수학교육에서 창조적 사고력을 기르는 것이 중요하며, 이에 관한 연구의 집적이 필요하다 이 연구는 수학교육을 통해 다양하고 확산적인 사고활동을 촉진하여 창조성의 육성이 가능하다는 것에 대하여 탐구하였다. 이를 위해 초등학교 수학교육에서 창조적 사고력을 길러줄 수 있다고 생각하는 교구에 의한 조작 활동 및 문제해결과 문제 만들기 학습 지도 방법을 통한 학생들의 다양하고 확산적인 생산에 대한 실제 사례를 들면서 논하였다. 수학교육에서 창조성의 육성은 초등학교 단계의 어린 시기부터 실시하는 것이 바람직하다고 생각되며, 이를 위한 다양한 교재 및 학습 지도 방법에 대한 개발·연구의 집적이 필요하다고 생각한다.