• Journal of Science Education
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• v.38 no.3
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• pp.543-554
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• 2014

The purpose of this study is to analysis of the cognitions of Korean science teachers and Timor-Leste's science teachers about the teacher training for the professional development as a science teacher held by Korean science teachers. Most of the Timor-Leste's Science teachers who participated at the teacher training mostly had their 10-year teaching career and were secondary school teachers. The purpose of the teacher training is to provide the science educational support for them and to encourage their own development; to effectively donate their skills and talents as a science teacher in their country. The data was collected from participant observation, interviews, and questionnaires. The results were as follows: many Korean teachers recognized that it is necessary to localize the experimental materials and utilize an appropriate language for the science education of Timor-Leste. Furthermore, until the stable science teacher training system of Timor-Leste is set up, it is necessary to be the precise understandings of the curriculum, the correct data regarding the state of education in Timor-Leste, and the knowledge need to Timor-Leste's science teachers. Meanwhile most of the Timor-Leste's Science teachers mostly had some difficulties in using language due to double translation, paying the participant fee, and travelling long distance from their country in participating the teacher training. What they expected at the teacher training was to enhance their professional ability as a science teacher, and to be able to manage the teacher training for Timor-Leste's science teachers by their own selves.

• 한국어정보학회:학술대회논문집
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• 2016.10a
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• pp.226-230
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• 2016

본 연구는 초등 저학년 읽기부진아동을 위한 한글 파닉스 교육의 기반을 확립하고자 1-2학년 교과서 고빈도 어절 531개를 기반으로 자소 및 음운규칙을 분석하였다. 연구결과, 자소-음소 일치 어절을 기반으로 하였을 때 초성에서 50번 이상 나타난 자소는 /ㄱ/, /ㄹ/, /ㄴ/, /ㅅ/, /ㅎ/, /ㅈ/이다. 중성에서 50번 이상 나타난 자소는 /ㅏ/, /ㅣ/, /ㅗ/, /ㅡ/, /ㅜ/이다. 종성에서 50번 이상 나타난 자소는 /ㄹ/, /ㄴ/, /ㅇ/이다. 자소와 음소가 불일치 된 어절을 기반으로 하였을 때 가장 많이 출현하는 음운규칙은 연음화 규칙이었다. 본 연구결과를 바탕으로 교과서를 기반으로 한 한글 파닉스 교육에 유용하게 사용될 수 있을 것이다.

• Annual Conference on Human and Language Technology
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• 2016.10a
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• pp.226-230
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• 2016

본 연구는 초등 저학년 읽기부진아동을 위한 한글 파닉스 교육의 기반을 확립하고자 1-2학년 교과서 고빈도 어절 531개를 기반으로 자소 및 음운규칙을 분석하였다. 연구결과, 자소-음소 일치 어절을 기반으로 하였을 때 초성에서 50번 이상 나타난 자소는 /ㄱ/, /ㄹ/, /ㄴ/, /ㅅ/, /ㅎ/, /ㅈ/이다. 중성에서 50번 이상 나타난 자소는 /ㅏ/, /ㅣ/, /ㅗ/, /ㅡ/, /ㅜ/이다. 종성에서 50번 이상 나타난 자소는 /ㄹ/, /ㄴ/, /ㅇ/이다. 자소와 음소가 불일치 된 어절을 기반으로 하였을 때 가장 많이 출현하는 음운규칙은 연음화 규칙이었다. 본 연구결과를 바탕으로 교과서를 기반으로 한 한글 파닉스 교육에 유용하게 사용될 수 있을 것이다.

• Journal of The Korean Association of Information Education
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• v.24 no.3
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• pp.233-241
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• 2020

This study has developed and applied an elementary EPL education program centered on execution time as an educational method for improving Computational thinking of elementary school students, and then its effect has been verified. The education program was developed based on the results of preliminary demand analysis conducted on 48 elementary school students. In order to verify the effectiveness of the education program, 25 students were asked to participate in the class of elementary school students on a seven hours for six days. Using the "Korea Bebras Challenge 2018", educational effects were analyzed through the results of pre- and post-mortem examinations, and the analysis showed that elementary EPL education centered on performance time was effective in improving computational thinking of elementary school students

• Journal of The Korean Association of Information Education
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• v.21 no.2
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• pp.219-230
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• 2017

In this study, we developed a data science education program using spreadsheet, applied it after educational method to improve elementary school student 's Computational Thinking, and then verified its effect. Based on the results of preliminary requirement analysis conducted by Rossett's request analysis the educational program was developed based on the procedure of the ADDIE model which is the representative model of the teaching design based on the result of prior requirement analysis of 205 elementary school students and computer teaching major 20 incumbent elementary school teachers, applying Rossett's requirement analysis model. In order to verify the effect of the developed educational program, we are promoting 42 hours of lecture for a total of 6 days for 20 students of applicants who volunteered for volunteer votes of educational donation programs implemented at ${\bigcirc}{\bigcirc}$University, We analyzed the educational effect using the results of pre-post test. As a result of the analysis, we learned that the educational program developed in this study is effective for improving elementary school student 's Computational Thinking.

• Journal of The Korean Association of Information Education
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• v.23 no.2
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• pp.107-116
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• 2019

The purpose of this study is to develop a Python sorting algorithm training program based on execution time as an educational method for enhancing the logical thinking power of elementary students and then to verify the effect. The education program was developed based on the results of the pre-demand analysis conducted on 100 elementary school teachers. In order to verify the effectiveness of the developed educational program, I teached 25 students of the volunteer sample of the elementary school education donation program conducted at ${\bigcirc}{\bigcirc}$ University conducted 42 hours, 7 days. The results of the pre-test and post-test were analyzed using the 'Group Assessment of Logical Thinking(GALT)' developed by the Korea Educational Development Institute. The results showed that the Python sorting algorithm training centered on execution time was effective in improving the logical thinking ability of elementary school students.

• Journal of The Korean Association of Information Education
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• v.22 no.2
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• pp.285-295
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• 2018

The purpose of this study is to develop a software education program using micro:bit based on the ADDIE development model and to analyze the effects of the development of creativity of elementary school students. The education program was developed based on the results of the pre-demand analysis conducted on 40 elementary school teachers in Jeju. In order to verify the effectiveness of the developed education program, 42 students who participated in the education donation program conducted by ${\bigcirc}{\bigcirc}$ University were enrolled in 24 hours for 7 days for 6 days. The results of the analysis show that the software education program developed in this study has positive effects on the creativity factors by improving the programming ability of elementary school students.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.12
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• pp.77-86
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• 2020

Power quality problems caused by feeder voltage drop and extension construction cost problems can occur with the increasing utilization rates of the existing fixed-type EV (electric vehicle) charger. Moreover, EV users might not be able to access the EV charger due to a lack of EV charging facilities. Therefore, this paper proposes an MPSD (movable power supply device) for EVs to overcome user inconvenience caused by the insufficient number of chargers and extension cost issues. The proposed MPSD was mainly composed of a PV (photovoltaic) system, ESS (energy storage system), EV charging system, and monitoring and control system. Furthermore, there are three operation modes available to enhance the flexibility of the MPSD application, depending on the situation. This paper also presents an economical evaluation modeling using the present worth method to consider the cost and benefit elements. The simulation results based on proposed modeling showed that MPSD is more economical than the existing EV charger. Moreover, its profit can be increased significantly depending on the distance to the installation point.

• Journal of The Korean Association of Information Education
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• v.22 no.4
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• pp.427-438
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• 2018

The purpose of this study is to analyze the effect of SW education applying CSCL based design thinking on elementary school students' creativity and problem solving skills. The study was conducted on 28 elementary school students in grades 4,5,6 participated in J university-sponsored educational donation program during the winter break. A SW education program based on design thinking was developed and applied to experimental group. First, we conducted a pre-test to check creativity and problem solving skills. After that, SW education program applying CSCL-based design thinking was conducted for 42 hours. Finally, post-test was conducted to examine creativity and problem solving skills. As a creativity test tool, the TTCT pattern test forms A and B of Torrance were used and analyzed. As the problem solving skills test tool, the problem solving skills test for the elementary school students developed as a life-ability measurement tool were used and analyzed. As a result of the verification, it was found that SW education applying design thinking was effective in improving elementary school students' creativity and problem solving skills.

• Journal of The Korean Association of Information Education
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• v.23 no.2
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• pp.179-188
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• 2019

The purpose of this study is to develop a Python search algorithm educational program based on execution time to improve the logical thinking of elementary school students. This educational program was developed based on the process of ADDIE model, utilizing the results of pre-demand analysis conducted for 133students in elementary school in ${\bigcirc}{\bigcirc}$. In order to verify the effectiveness of the developed education program, 25 students who participated in the education donation program at ${\bigcirc}{\bigcirc}$ University conducted 42 hours of classes during 6 days. The GALT test was used to analyze the educational effects of the pre- and post-test. The results of the analysis show that the SW education program developed in this study can positively affect the logic of elementary school students.