• Proceedings of the Korean Society of Computer Information Conference
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• 2014.07a
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• pp.157-160
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• 2014

본 논문에서는 최근 주목받고 있는 임베디드 시스템 개발을 위한 소프트웨어 교육의 필요성을 살펴보고 이를 위해 레고 마인드스톰 EV3 교구를 활용한 학습프로그램을 개발하여 제안하고자 한다.

• Journal of Educational Research in Mathematics
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• v.14 no.2
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• pp.207-219
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• 2004

There have been studies reporting the increase in student confidence in mathematics when using technology. However, past studies indicating a positive correlation between technology and confidence in mathematics do not explain why they see this positive outcome. With increased availability and easy access to the Internet in schools and the development of free online virtual manipulatives, this research was interested in how the use of virtual manipulatives in mathematics can affect students confidence in their mathematical abilities. Our hypothesis was that the classes using virtual manipulatives which allows students to connecting dynamic visual image with abstract symbols will help students gain a deeper conceptual understanding of math concept thus increasing their confidence and ability in mathematics. The participants in this study were 46 fifth-grade students in three ability groups: one high, one middle and one low. During a two-week unit on fractions, students in three groups interacted with several virtual manipulative applets in a computer lab. Data sources in the project included a pre and posttest of students mathematics content knowledge, Confidence in Learning Mathematics Scale, field notes and student interviews, and classroom videotapes. Our aim was to find evidence for increased level of confidence in mathematics as students strengthened their understanding of fraction concepts. Results from the achievement score indicated an overall main effect showing significant improvement for all ability groups following the treatment and an increase in the confidence level from the preassessment of the Confidence in Learning Mathematics Scale in the middle and high ability groups. An interesting finding was that the confidence level for the low ability group students who had the highest confidence level in the beginning did not change much in the final confidence scale assessment. In the middle and high ability groups, the confidence level did increase according to the improvement of the contest posttest. Through interviews, students expressed how the virtual manipulatives assisted their understanding by verifying their answers as they worked and facilitated their ability to figure out math concept in their mind and visually.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.9
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• pp.259-268
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• 2020

Eighteen catholic churches, built in the Chungbuk area(Cheongju diocese) under the jurisdiction of the American Maryknoll missioners in 1953-1969, are not constrained by specific architectural styles, unlike those built by other foreign Catholic missionary organizations. The same is true of Naedeok-dong cathedral in Cheongju, which is the highest hierarchy and representative church of the diocese. Nevertheless, it has unique architectural features that distinguish it from other churches in the diocese. This study examined what those features were, how they were embodied, and their origins. This study also shows that the features are common in the missioners' churches in Pyeogyang diocese in 1923-1942 and that Father James V. Pardy and the architect Tae-Bong Park, played a bridging role in having the same features between the Pyeogyang and Cheongju diocese. In conclusion, this study summarizes the significance of Naedeok-dong cathedral in relation to the missioners' ideology, in the history of the churches in 1923-1969 and Korean modern Catholic church architecture. To this end, a literature search that utilized mainly primary sources, such as newly discovered architectural drawings, photographs, and text related to the cathedral, was performed.

• Journal of the Institute of Electronics and Information Engineers
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• v.53 no.8
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• pp.136-144
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• 2016

In general, it is this variety of learning methods and teaching tools for embedded software development and deployment training. In this paper, I want to take advantage of the smart robot to learn creative problem-solving methods that are required in embedded software engineering education. It analyzes the effect of creative engineering education with the smart robot and presents for RSPM Engineering Embedded SW teaching methods to improve NCS education. Embedded SW engineering education in a more creative and smart robot, EV3 system was utilized to improve SW programming skills. In this paper, we utilize the EV3 system to the parish through the creative RSPM engineering courses through the survey and analysis of the impact level, interests and program skills and influence in embedded SW engineering education propose for successful embedded software programming skills potential.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.9 no.1
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• pp.143-153
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• 2008

Recently has there been a great increase of the interests in the excavation of governing institutions and their restoration. There also arise discussions on whether the municipal governments should appoint old governing institutions as the historical spots. In the course of the excavation and restoration of old governing institutions, their practical use becomes a matter of concern. So the reproduction of the past ritual ceremonies and events in the governing institutions attracts considerable attention. But the discovery and the analysis of historical materials are very insufficient to meet the recent increase of such demand. In that point of view, this study aims to analyze the ceremony of Kwanchalsa's(觀察使; a provincial governor) arrival at one's post and the use of governing institutions for it and to examine the Kwanchalsa's route of sulryeok(巡歷) and the ritual ceremonies held in the cities he visited. The Chungcheong-Gamsa(忠淸監司; the governor of Chungcheong-Do) in the 18th century is the subject of this analysis and three local officials' diaries - Chungcheong Gamyeong Ilgi ($\ulcorner$忠淸監營日記$\lrcorner$), Hoseo Gamyeong Ilgi ($\ulcorner$湖西監營日記$\lrcorner$), Geumyeong Ilgi($\ulcorner$錦營日記$\lrcorner$) - are closely investigated for that purpose.

• Communications of Mathematical Education
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• v.36 no.4
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• pp.627-644
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• 2022

In this study various angle trisection tools based on Archimedes' insertion method were investigated, some tools were fabricated and their characteristics were compared. Through these works, it was found that factors such as the convenience of use, arbitrariness of the trisected angle, and simplicity of structure should be considered in the production and utilization of the trisection tool. Considering the factors described above, attention was paid to the method proposed by Veprtskii A.I. in 1888 as a making method of the angle trisection tool. In this study, we improved the method proposed by Veprtskii A.I., we used two wooden chopsticks and a string to make an angle trisection tool. The improved trisection tool had fewer parts than other trisection tools, a simple structure, and more convenient usage. In particular, this tool divided an arbitrary angle(not a specific angle) into the same three parts, and the production cost was low and the production process was simple. This tool is expected to be widely used in concrete activities related to the properties of the exterior angles of triangles and the properties of isosceles triangles in mathematics classrooms.

• Convergence Security Journal
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• v.24 no.1
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• pp.43-49
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• 2024

The convergence of education and technology has been emphasized, leading to the application of educational technology (EdTech) in the field of education. EdTech provides learner-centered, customized learning environments through various media and learning situations. In this paper, we designed hardware for EdTech-based educational tools for IoT security education in the field of cybersecurity education. The hardware is based on a dual microcontroller unit (MCU) within a single board, allowing for both attack and defense to be performed. To leverage various sensors in the Internet of Things (IoT), the hardware is modularly designed. From an educational perspective, utilizing EdTech in cybersecurity education enhances engagement by incorporating tangible physical teaching aids. The proposed research suggests that the design of IoT security education hardware can serve as a reference for simplifying the creation of a security education environment for embedded hardware, software, sensor networks, and other areas that are challenging to address in traditional education..

• Journal of The Korean Association of Information Education
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• v.20 no.3
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• pp.273-282
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• 2016

The new STEAM program suggested in this paper aims at helping students to have interest in information security engineering experts and to design their career creatively through the project on future promising career. The program was designed to help teachers and students understand the jobs and capabilities required for information security experts through direction and execution of the information security expert project. Teaching tools of information security through simulation hacking play activities based on hexagon cell is designed to provide students with the chance to indirectly experience the job of a computer security expert through an unplugged education. Because the content of cyber security is unfamiliar and difficult to understand, the program is designed to allow students to access the key principle of the job, rather than to describe the technical part. Using this program, students will be able to communicate with each other to solve the problems, to have interest in computer security experts, and to design their careers in a creative manner.

• Journal of the Korean School Mathematics Society
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• v.12 no.1
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• pp.71-97
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• 2009

The study was to develop the instruments including instructional materials and test items for enhancing spatial ability. A mixed methodology was chosen to achieve the purpose of the study. To find students' achievement, 5 units of instructional materials were developed through the qualitative method and test items were tested through the quantitative method with 152 of the 8th-graders. The strategies to develop the instructional materials were: firstly to focus on mathematics properties for developing spacial ability; secondly, to allow students to follow hierarchical procedure o[ mathematical properties from 2-d to 3-d; thirdly, to recognize what the manipulative can do and can not; and fourthly, to guide students tn develop the process oriented thought, not the result oriented thought. For the test, 25 items were analyzed to assess students' achievement using validity, difficulty, and discriminator.

• Proceedings of the Korean Society of Computer Information Conference
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• 2019.07a
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• pp.219-222
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• 2019

4차 산업혁명이 언급되면서 3D 프린터, 로봇, 인공지능, 빅데이터 등 신기술이 발전하고 이는 사회 구조를 변화시킬 것으로 예상된다. 이에 새로운 디지털 기기, 기술들을 이해하는 디지털 리터러시가 중요해지고 있다. 2015 OECD PISA에서 ICT 배경조사 중 한국은 접근성, 활용성 부분과 2018 국가수준 디지털 리터러시 수준 측정연구, 학생들의 디지털 기기의 인식 여부 및 활용 여부 실태조사를 바탕으로 디지털 기기 활용 공간 구성 및 디지털 기기 활용 콘텐츠를 다음과 같이 제안하였다. 먼저 구체적 조작기인 초등학생임을 고려하여 디지털 기기 위주 프로그램으로 선정하였다. 디지털 기기 활용 공간은 기반 기기로 컴퓨터(노트북), 유 무선 인터넷, 디지털 기기로 3D 프린터 및 3D 프린팅 펜, 스마트폰 기반 VR기기, AR마커, 블록코딩 기반 피지컬 컴퓨팅 교구 등을 이용해서 구성하였다. 활용하는 콘텐츠는 학생들의 인식 여부 및 수준에 맞춰 체험 위주의 프로그램과 학습, 콘텐츠 제작, 문제해결 프로그램으로 제시하였다.