• Journal of The Korean Association of Information Education
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• v.25 no.2
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• pp.377-385
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• 2021

This study attempted to develop and apply a physical computing SW education program applying design thinking. The produced SW education program was applied to 22 students in the 5th and 6th grades of J and B elementary schools located in Jeju-si. Computational thinking ability and creativity pre-test was conducted, and Physical computing software training applied design thinking was conducted over a total of 5 sessions for 20 hours, followed by a post-test on creativity and computational thinking ability. As a result of the verification, it was found that physical computing SW education program applying design thinking was effective in improving the creativity and computing thinking ability of elementary school students.

• The Journal of Korean Institute of Next Generation Computing
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• v.13 no.6
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• pp.21-30
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• 2017

Physical computing is performed through interaction with the real world making it suitable for cultivating student abilities in computing knowledge and thought processes. Furthermore, if users can develop programs under block-coding environment, it will be more easy and more intuitive. However, the existing block coding environment has a problem that the physical devices must be continuously connected to the computer. Blockly is an open source library that adds a visual code editor linked with graphic blocks to demonstrate coding concepts through web and mobile apps. Using Blockly, we describe a development environment for physical computing on mobile platform, which combines physical computing with an established block-coding environment, and activates it through wireless communication.

• Proceedings of The KACE
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• 2018.01a
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• pp.153-156
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• 2018

2015개정 교육과정에서 학생들이 문제를 효과적으로 해결하는 방법이 중요하며 이를 키우기 위해 컴퓨팅 사고력이라는 방법으로 접근하고 있으며 이를 위해 정보교과는 2015개정 교육과정의 핵심 역량으로 지정하였다. 이에 컴퓨팅 사고력을 높이는 방법으로 프로그래밍 교육을 적용하고 있으며 보다 프로그래밍 교육의 효과를 높이기 위해 여러 방법을 적용하고 있으며 피지컬 컴퓨팅의 활용이 방법으로 제기되고 있어 관련연구들이 지속적으로 진행되고 있다. 본 연구에서는 피지컬 컴퓨팅의 활용이 프로그래밍 교육에 긍정적인 역할을 수행하는가에 대한 문제를 해결하기 위해 관련 연구를 수집하여 메타분석을 진행하였다. 분석결과 피지컬 컴퓨팅을 활용한 프로그래밍 교육은 비교대상 대비 19.9%의 향상을 나타냈다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2023.07a
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• pp.395-396
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• 2023

본 논문에서는 디지털 전환 시대에 모든 사람들이 인공지능(AI) 체험부터 피지컬컴퓨팅을 통해서 SW·AI 융합해 아이디어를 쉽게 구현하고 교육 받을 수 있는 플랫폼을 구현하였다. AI 체험을 위해 P5.js와 텐서플로우에 기반한 ML5.js 라이브러리를 이용해 블록 코딩을 할 수 있도록 하였다. 또한 피지컬컴퓨팅에서는 마이크로비트와 아두이노, 라즈베리파이 등을 WebUSB를 통해서 PC와 연결하고 플랫폼에서 인공지능의 다양한 서비스와 융합시킬 수 있도록 제공한다.

• Journal of the Korean Society for Railway
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• v.17 no.1
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• pp.19-27
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• 2014

Urban railway vehicles operate in downtown areas. Due to increases in the number of passengers and changes in the service plans, railway vehicles are expected to operate on sharp curved tracks. However, on these tracks, the running stability of the railway vehicles is significantly decreased and the creepage is increased. Creepage causes the wheel/rail to wear and vibration. Therefore, reducing the creepage helps ensure the running stability and can be beneficial for the environment and cost. In this paper, the longitudinal creepage is analyzed using a railway vehicle model on a sharp curved track. Furthermore, in order to minimize the problems when a railway vehicle runs on a sharp curved track, the characteristics of a bogie are optimized using response optimization.

• Proceedings of The KACE
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• 2018.01a
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• pp.83-85
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• 2018

사회가 복잡하게 변화됨에 따라 온난화 등의 해결하기 어려운 새로운 문제들이 등장하고 있다. 이를 효과적으로 해결하기 위해서는 창의력과 절차적인 사고가 요구되며 이러한 능력을 키우기 위해 소프트웨어 교육이 필요하다. 이에 따라 2015개정 교육과정에서 정보교과의 비중이 증가하였으며, 2018학년도부터는 중학교 정보교육이 의무화되었고, 그 동안 실제 생활에 접목하여 문제 해결력 및 컴퓨팅 사고력을 향상 시킬 수 있는 피지컬 컴퓨팅이 도입되었다. 하지만 고등학생의 경우 이전 교육과정에서 새롭게 도입되었기에 피지컬 컴퓨팅 수업이 진행되기가 쉽지 않다. 본 연구에서는 고등학생의 피지컬 컴퓨팅 구현 능력 향상과 이를 통해서 문제 해결력 향상에 어떠한 영향이 있는가를 알아보기 위해서 피지컬 컴퓨팅 교육 프로그램을 위한 과정으로 오래된 운영체제에서만 사용이 가능한 구형 프린터기의 드라이버를 최신 운영체제에서도 사용이 가능하도록 프린터 드라이버를 커스터마이징하여 윈도우 10에서도 사용이 가능하도록 하는 소프트웨어 교육을 설계하였고 이를 고등학생에게 적용하기 위하여 학생들의 사전 사후 검사를 실시하고자 한다. 자원의 재활용과 환경적인 측면에서 그 동안에는 신제품 구입 후 빠른 IT환경의 발전 및 변화로 멀쩡한 하드웨어를 폐기하고, 최신 운영체제에 대응하는 하드웨어를 새롭게 구입해야 했으나, 본 교육과정을 통해 각 가정에 있는 구형 프린터의 재사용을 위한 프린터 드라이버 제작이라는 선순환적인 교육목적을 추구하며 소프트웨어 교육이라는 본질 측면에 좀 더 가까이 다가가며, 해당 하드웨어 제품에 대한 소프트웨어의 저작권 교육도 함께 진행할 수 있으며, 잘 만들어진 소프트웨어의 경우 새로운 시장을 창출할 수 있도록 하는 계기가 될 것이다. 학생들의 흥미에서는 좋은 반응을 보였으나 실제 문제 해결력을 위해서는 저변 확대가 필요함을 알 수 있었다. 오래된 구형 하드웨어를 최신 운영체제에서도 사용할 수 있도록 하는 과정에서의 실생활에 적용되는 유용한 피지컬 컴퓨팅을 보다 효과적으로 사용하기 위해서는 프로그램의 설계에 대한 지속적인 연구가 필요할 것이다.

• The Journal of Korean Association of Computer Education
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• v.22 no.5
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• pp.39-50
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• 2019

In this study, we developed the selection criterion of physical computing teaching aids for middle school SW education. Literature analysis, Delphi survey, and AHP methods were applied to develop the selection criterion. First, seven characteristics for physical computing teaching aids have been set up by the literature analysis. The contents are suitability for curriculum, safety, durability, economy, general availability, attractiveness, and ease of management. Based on these characteristics, the Delphi method is used in developing 31 criteria in 7 areas for the selection of physical computing teaching aids. Next, the AHP method was applied to identify the relative importance between 7 areas and between 31 detailed criteria. And then the final criterion for the selection of physical computing teaching aids was developed by calculating scores for detailed criteria.

• Journal of Creative Information Culture
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• v.7 no.4
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• pp.265-277
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• 2021

Data is the core of AI technology. With the development of technology, AI technology is also accelerating as the amount of data increases explosively than before. However, compared to the interest in AI education, research on data education with AI is still insufficient. According to the case analysis of exsisting AI data education, there were cases of educating the process and part of data science, but it was hard to find studies related to data collection. Cause physical computing tools have a positive effect on AI education for elementary school students, data collection cases using tools were studied, but researches related to data collection were rare. Therefore, in this study, an efficient data collection method using physical tools was designed. A structural diagram of a data collection program was created using COBL S, a modular physical computing teaching tool, and examples of program screens from the service side and the user side were configured. This study has limitations in that the establishment of an AI education platform that can be used in conjunction with future program production and programs should be prioritized as a proposal in terms of design.

• Journal of the Korea Society of Computer and Information
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• v.28 no.11
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• pp.235-243
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• 2023

In this paper, we developed a problem-solving based safety education program using physical computing for middle school students and applied it to verify the impact on self-efficacy and interest. The safety education program developed in this study includes four stages of the creative problem-solving model: problem identification, planning, implementation, and evaluation, and learning activities using Arduino, a physical computing tool. After implementing the education program with 77 third-year middle school students, both self-efficacy and interest of middle school students increased significantly. Based on the research results, the effectiveness of the safety education program that used physical computing and problem-solving steps was confirmed, and practical implications were presented to promote the activation of physical computing education in the school field.

• Journal of the Korea Society of Computer and Information
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• v.29 no.3
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• pp.227-235
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• 2024

In the era of the information revolution, the need for artificial intelligence convergence education is emerging in the trend of global change. Therefore, in this paper, a physical computing programming education method that combines artificial intelligence was developed and applied. The control group was provided with physical computing programming education that did not converge with artificial intelligence, and the experimental group developed and applied a physical computing programming education method that fused artificial intelligence to analyze the impact on elementary school students' computing thinking ability. As a result, it was confirmed that physical computing programming education fused with artificial intelligence had a more positive effect on enhancing elementary school students' computational thinking skills compared to physical computing programming education without artificial intelligence.