• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.4
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• pp.33-38
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• 2020

Problem development is important to Problem-Based Learning (PBL) and is key to the creativity and problem-solving skills of successful learners. The purpose of this study is to have PBL classes that effectively materialize problem development stages, and to develop learning using problems suitable for elementary school English Science classes. In this study, the steps for developing the problems are identifying educational content, identifying learners' characteristics, discovering problems, setting up roles and situations, and writing problems. Based on these steps, five PBL problems were developed by selecting a subject suitable for the PBL method of an English Science class, which is one of the English curriculums in elementary schools. Creative thinking, problem-solving skills, presentation skills, confidence, self-directed learning, cooperation, and communication skills are required in the rapidly changing society of the 21st century, rather than teacher-centered instruction, acquiring knowledge for correct answers only, and uniform assessments, which still take place in many English education settings. Therefore, developing problems suitable for PBL learning should be continuously studied.

• Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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• v.7 no.1
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• pp.253-263
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• 2017

As needs for knowledge on Korean history and the attention of the people are rapidly increasing, various smartphone applications for learning the history have appeared during recent years. These applications provide multiple choice questions to users through their own problem banks. But, since these questions are selected from the fixed set of problems that are stored previously, the learning efficiency of users is inevitably decreased when they use the applications repeatedly. In this paper, we present a question generation system named K-History which generates multiple choice questions in an automatic way using the database on the history of Korea. In addition, we also describe the development of the application Korean History Infinite Challenge as a learning application for Korean history. To develop K-History, we classify typical types of learning problems through various problems based on Korean history learning materials, proposing algorithms to generate problems according to the types found. Through the developed techniques, various learning systems can reduce the cost for creating questions, while increasing the learning efficiency of users.

• Journal of The Korean Association of Information Education
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• v.21 no.6
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• pp.629-638
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• 2017

This study investigated the definition and characteristics of computer science problem to be solved through computational thinking. It also explored types and cases of both computer science problems and teaching learning methods to solve computer science problems. Before studying computer science problems, I examined the definition, type, and the importance of problem solving in other subjects. Based on this research, We found that informatics can solve ill-structured problems through computational thinking and the power of computing. This includes counting, decision, retrieval, and optimization problems. Teachers can improve their students' skills in computational thinking, particularly as related to abstraction, automation, and generalization, by choosing the appropriate teaching and learning method or based on the characteristics of the problem.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.8
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• pp.106-114
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• 2017

This study was a one-group pre-post test design experimental investigation conducted to evaluate the effects of problem-based learning by type of learning in nursing students. The subjects of the study were 125 senior students in the Department of Nursing Science at a single university located in A. City, and the study was conducted for eight weeks from April 18 through June 10, 2016. Data analysis consisted of descriptive statistics, ANOVA, ${\chi}^2$-tests and t-tests. Most nursing students underwent converger type of learning, and after problem-based learning, their learning flow, problem-solving ability and critical thinking disposition increased significantly. In problem-based learning by type of learning, the problem-solving ability was significantly higher in the converger type than in the accommodator type, and there were no significant differences in learning flow and critical thinking disposition; however,in all types of learning, learning flow and critical thinking disposition increased. Since these results suggest that teaching and learning strategies should be set up for each type of learning, it is necessary to seek plans for teaching and learning strategies to make up for the weak points and strengthen the strong points by each type of learning when applying the problem-based learning method.

• Education of Primary School Mathematics
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• v.1 no.1
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• pp.23-32
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• 1997

최근 및 년 사이에 수학교육에 대한 연구는 광범위하게 이루어지고 있다. 이러한 수학교육의 문제는 크게 Piaget의 인지이론에 근거한 연구와 정보처리 이론을 바탕으로 한 인지심리 학자들의 연구에 근거하고 있다. 지금까지 연구되어 발표된 학습이론에 대한 논문들을 보더라도 이러한 경향을 쉽게 알 수 있을 것이다.(중략)

• Proceedings of the Korea Information Processing Society Conference
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• 2019.10a
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• pp.926-927
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• 2019

본 논문은 개방형 얼굴 인식 문제를 다룬다. 이 문제는 학습되지 않는 대상에 의해 발생하는 거짓 양성 오류문제를 포함하며, 이로 인해 얼굴인식 기술을 보안 시스템에 적용하는 것을 어렵게 만든다. 본 논문에서는 이러한 개방형 얼굴 인식 문제를 효과적으로 해결하기 위해 먼저 얼굴 검증 방법으로 식별력이 강한 특징 벡터를 생성하고, 이를 바탕으로 일반적인 분류기가 아닌 추가학습과 실시간 처리가 가능한 군집화 방식의 알고리즘을 제안한다. 이 방법을 적용한 실험 결과 80 명의 얼굴이 포함된 FaceScrub 데이터 세트에서 4 명을 제외하고 학습시켰을 때 98%의 정확도와 0%의 특이도를 얻을 수 있었다.

• Journal of the Korean Geographical Society
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• v.37 no.3
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• pp.247-261
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• 2002

This study suggests that the contents and methods focusing on the leamer's geographical experience of everyday life and environments, are very effective for teaching and teaming in geography subject matter. The contents have to be selected and structurized from private geographies about their region of everyday life for teaming abstractive and scientific concepts of geography. Scientific concepts of geography, i.e. geographical concepts become 'scope'for selecting the contents and these systematic structure substitutes 'sequence'. The criteria by which selected contents of teaching and teaming based on everyday life may consist of three elements: region as leamer's place for everyday life; concrete experience of the place; and leamer's changing geographical experiences.

• 한국정보교육학회:학술대회논문집
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• 2010.01a
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• pp.171-174
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• 2010

디지털 강국을 선도하기 위해서는 초등학교에서부터 정보통신 관련 교육적 경험을 제공하는 것이 필요시 된다. 본 연구에서는 초등학생의 인지발달 수준에 부합하고 전기, 전자 통신 학습에 효과적인 교구인 디키를 교과통합 및 재량활동에 적용하고 학습자의 반응을 분석하여 교육적 효과를 살펴보았다. 학습초기에 생소한 부품들로 학습곤란을 경험하였지만 교육이 진행될수록 기존의 습득한 지식과 기능을 바탕으로 지식을 재구조하여 창의적 표현 및 문제해결활동에 활용하였다.

• Journal of The Korean Association of Information Education
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• v.10 no.2
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• pp.229-239
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• 2006

The present study analyzed the effects of Problem-Based Learning (PBL), founded on the constructivist theory, on the problem solving process and computer application ability as to students' level in elementary computer education. According to the PBL model, developed on the basis of previous research and the purpose of the study, the area of 'application of software' in third-grade computer curriculum was redesigned for the three-week period of the experiment. The results of the analyses showed that problem-based learning tended to exert differential effects with regard to students' level on the problem-solving process and computer application ability in computer education. The implications of the study and suggestions for the future study were discussed.

• Journal of the Korean School Mathematics Society
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• v.12 no.2
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• pp.171-193
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• 2009

Although Korea students have been showed the top academic achievement in the international evaluation test for mathematics academic achievement, they have the low confidence, low interest and unwelcome attention about mathematics. In order to change student's affective aspects about mathematics, we introduced the problem based learning(PBL) method which is based on constructivist learning theories. By applying PBL to the middle and high class students, we investigated the effect of PBL on the students' academic achievement and mathematical attitudes. The study shows that there are the statistically significant differences between a control group and a comparison group both in academic achievement and mathematical attitudes.