• Journal of The Korean Association of Information Education
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• v.24 no.3
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• pp.243-254
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• 2020

In order to cultivate AI(artificial intelligence) manpower, major countries are making efforts to apply AI education from elementary school. In order to introduce AI education in elementary school, it is necessary to have a curriculum and educational content for elementary school level. This study developed educational contents to experience the principle of AI learning at the unplugged level for the purpose of AI education for elementary school students. The educational content developed was selected as an AI that evaluates the emotion of sentences. In addition, to solve the problem, data attributes were derived and collected, and the process of AI learning was simulated to solve the problem. As a result of the study, the attitude of elementary school students to AI increased post than before. In addition, the task performance rate was averaged at 85%, showing that the proposed AI education content has educational significance.

• 한국HCI학회:학술대회논문집
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• 2008.02b
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• pp.193-198
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• 2008

Now days with the significant grows of internet and PC hardware/software, most of the business, include small size business and soho, is worked by PC/Network. However these critical changes, all the PC/Network system or service is identical and these make user a inconvenient experience and unpleasant aspect to PC/Network. This research is to segment the user bases on the user context of using PC and all this segmentation was done in contextual design process. From Contextual Interview, all data of user context of environment, use case, needs, voices, break downs were captured and these data were interpreted and filtered to affinity notes and user modeling. After the interpretation, the consolidation was being held by affinity diagram, which could make ready to segment the user. For the result, 3 segmentation was evaluated and which are the 'Holistic Networker', 'Unplugged Controller' and 'Passive Reactor'.

• Journal of The Korean Association of Information Education
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• v.22 no.1
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• pp.169-176
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• 2018

CS Unplugged education at the base of computer science is emphasized as an instrument for teaching the basic principles of elementary SW education, but these materials for elementary education are very lacking. So We'll present the data error detection and correction materials for elementary school classes. Based on previous studies related to this topic, we developed learning materials for elementary higher grade students using Hamming code. We introduces the card magic in the introduction part. 'error detection and correction' learning materials based on the principle of Hamming code, were composed as activity-based education. The results of the questionnaire survey showed that it had a positive effect on improving learners' understanding of computer science.

• Journal of The Korean Association of Information Education
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• v.17 no.2
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• pp.125-134
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• 2013

In this paper, we want to know the effect of elementary students' creativity thru the play-centered computer science educational program. We extracted educational content from computer science. The students addressed to the problems thru the play and found their own solution. Research result show significant difference in creative attitude of sub-area of creativity. We found that students were actively involved with pleasure in play, the rules of play was actively keep.

• Proceedings of the KAIS Fall Conference
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• 2009.12a
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• pp.76-79
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• 2009

컴퓨터 교육은 실습 위주로, 컴퓨터를 도구적으로 활용하는 소프트웨어 활용 수업이 대부분을 차지하고 있으며, 단순한 컴퓨터 활용의 실습 수업은 학습자로 하여금 흥미를 잃게 하고 문제해결력과 창의성 개발을 저하 시킨다는 문제점들이 제기되어 왔다. 이에 개정된 7차 교육과정은 이러한 소프트웨어 활용 위주 교육의 문제점을 인식하고 컴퓨터 과학, 원리 위주의 교육으로 변화 하였다. 본 연구는 개정된 제7차 교육 과정이 컴퓨터 과학 교육으로 변화됨에 따라 컴퓨터 과학의 내용을 보다 흥미롭고 쉽게 이해시키기 위하여 언플러그드 학습 시스템을 개발 하였다. 컴퓨터 과학의 추상적이고 개념적인 내용은 중등학교의 교육과정으로는 다소 쉽지 않은 내용이며, 이론 위주의 교육과정은 학생들에게 흥미 없는 교과로 비추어 질 수 있지만, 정보 교과를 위한 언플러그드 학습 시스템을 통해 흥미 있는 교과로 인식이 변화될 것으로 기대된다.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2002.11b
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• pp.921-926
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• 2002

In this study, we investigate the plugging effect on the CE type steam generator tube. The natural frequency and mode shape will be changed due to decrease of the effective mass distribution along the tube. We compared the variation of stability ratio for plugged tube with that for unplugged one. The natural frequency increased because of removing the cooling water inside the steam generator tube, but the stability ratio decreased inversely because of changing the vibrational model shape. We also investigated the turbulent excitation effect.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2002.11a
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• pp.390.1-390
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• 2002

In this study, we investigate the plugging effect on the CE type steam generator tube. The natural frequency and mode shape will be changed due to decrease of the effective mass distribution along the tube. We compared the variation of stability ratio for plugged tube with that fur unplugged one. The natural frequency increased because of removing the cooling water inside the steam generator tube, but the stability ratio decreased inversely because of changing the vibrational mode shape. We also investigated the turbulent excitation effect.

• Proceedings of the Korean Society of Computer Information Conference
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• 2017.07a
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• pp.209-210
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• 2017

본 연구에서는 초등에서 알고리즘 교육의 방법으로 사용되는 언플러그드 활동에 순서도를 활용하는 방안을 제안한다. 소프트웨어 교육의 기본적인 방향은 컴퓨팅 사고력을 기반으로 문제를 해결하는 역량을 기르고자 하는 것[1]이지만, 현재는 교육용 프로그래밍 언어의 학습에 치우쳐 있거나 알고리즘 교육이 제대로 이루어지고 있지 않다. 언플러그드 활동에 순서도를 활용함으로써 알고리즘 영역의 교육을 강화하고 균형 잡힌 컴퓨팅 사고력 함양에 도움이 될 것이다.

• Journal of The Korean Association of Information Education
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• v.20 no.1
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• pp.13-20
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• 2016

Data are numbers and texts, images, sound etc in real world. But, data is represented as a sequence of 1s and 0s in computer. It is very difficult that elementary students understand the concept of data representation through traditional lecture method. In this paper, we analyzed the software education curriculum of KAIE and selected contents of data representation education for the mid-grade elementary students. Also, we developed teaching- learning materials and multimedia contents for data representation education. The method proposed in this paper is expected to contribute to software education for data representation education.

• Korean Journal of Child Studies
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• v.34 no.4
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• pp.163-177
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• 2013

Digital technology has advanced rapidly and it is anticipated that multimodal ways of meaning-making will become increasingly important. Consequently, teaching multimodal literacies is becoming a major issue in education. This study focuses on the use of picture diaries as a means of teaching multimodal literacies. Picture diaries are one of the basic and unique multimodal texts used in lower elementary level classes in Korea. A further advantage is that it is a promising text model which can be taught in unplugged ways. In order to explore the educational implications of using such picture diaries, this study sought to analyze the ways in which twenty four $1_{st}$ graders in an elementary school constructed meaning with written language and pictures in composing picture diaries. 251 picture diaries composed during several months of their $1_{st}$ grade period were analyzed based on the constant comparative method. The results indicated that the students utilized both written language and pictures in diverse and creative ways to provide their audience with more comprehensive meaning. These results indicate that teachers need to consider their students as active multimodal meaning-makers and provide their students with more opportunities to practice multimodal meaning-making and share their experiences.