• The Transactions of the Korea Information Processing Society
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• v.13 no.3
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• pp.122-129
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• 2024

Though programming education has been stressed recently, the elementary, middle, and high school students are having trouble in programming education. Most programming environments for them are based on block coding, which hinders them from moving to text coding. The traditional PC environment has also troubles such as maintenance problems. In this situation, mobile applications can be considered as alternative programming environments. This paper addresses the design and implementation of coding applications for mobile devices. As a prototype, a Scheme interpreter mobile app is proposed, where Scheme is used for programming courses at MIT since it supports multi-paradigm programming. The implementation has the advantage of not consuming the network bandwidth since it is designed as a standalone application. According to the benchmark result, the execution time on Android devices, relative to that on a desktop, was 131% for the Derivative and 157% for the Tak. Further, the maximum execution times for the benchmark programs on the Android device were 19.8ms for the Derivative and 131.15ms for the Tak benchmark. This confirms that when selecting an Android device for programming education purposes, there are no significant constraints for training.

• Journal of The Korean Association of Information Education
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• v.18 no.4
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• pp.615-624
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• 2014

According to the rapid growth and popularization of the SMART device, the society is being changed greatly and importance of SW education is being emphasized. Also many student have a lot of interests about mobile application programming. The latest study suggests using the robots in the programming education may help to induce learners' interest and motivation, participation, achievement. So in this research, I designed a programming educational plan for SW education using robot and mobile application development tool(App Inventor) and applied them. And I conducted a survey four ares such as class, robot, App Inventor, robot and App Inventor. As a result, learner's response of interest and satisfaction was very positive commonly at four areas. In particular, learners could get programming result immediately using smart phone and could control the robot using smart phone, so learner's interest had increased especially. The conclusion is that suggested plan for SW education using robot and mobile application development tool is useful for programming education.

• Proceedings of the Korea Information Processing Society Conference
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• 2023.11a
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• pp.60-63
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• 2023

프로그래밍 모바일 앱은 장소에의 제약성 해소와 장비의 경량화가 가능하다. 프로그래밍 실습을 위한 환경으로 PC나 서버 연결 온라인 환경 등이 주로 사용되나 모바일 앱은 거의 사용되지 않는다. 이 연구에서는 모바일 앱을 활용하여 프로그래밍할 수 있는 환경을 설계하고 구현한다. 프로그래밍 언어로는 LISP의 파생어인 Scheme을 사용하였다. Scheme 언어는 다중 패러다임 언어로서 프로그래밍 교육에서 다양한 관점으로 문제 해결 방식을 제공할 수 있다. 이를 통해 Scheme 언어에 대한 인터프리터를 서버리스 프로그래밍 앱으로 설계하고 구현하는 과정을 기술한다. 구현 결과에 대한 인터프리터 처리 성능 실험으로 재귀 함수로 피보나치 수열을 계산하였을 때 PC 수행 시간에 대한 모바일 버전 수행 시간 백분율 기하 평균은 0.96으로 모바일 환경에서도 일반 컴퓨터 환경에 버금가는 처리 성능을 얻음을 확인하였다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2016.10a
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• pp.635-637
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• 2016

The purpose of this study was to apply other programming tools such as robots parish. The robot was utilized for Lego Mindstorms NXT. Programming tools were used to block generic programming tools were used in the NXT-G, was used as a simulation programming tools MSRDS, mobile App Inventor is a programming tool (App Inventor). It can lead to interesting effects of learning and learning based on three programming tool above.

• Journal of The Korean Association of Information Education
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• v.20 no.5
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• pp.519-526
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• 2016

MIT App Inventor 2, much like the other block-based programming languages such as Scratch and Alice, is a useful tool that can be utilized to improve the computational thinking skills for students. The coding and the execution of program are done mainly on the computer in Scratch programming, but in App Inventor 2 programming, the students can execute the program and get immediate feedback on the smart-phone in the middle of the programming. Therefore, we can expect better enhanced learning effect. In this study, it has been claimed that the learning of App Inventor2 can strengthen the computational thinking skills of our students by extracting four core concepts of the computational thinking and then showing how these concepts are applied through the learning of App Inventor 2.

• The Journal of Korean Association of Computer Education
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• v.19 no.2
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• pp.1-10
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• 2016

This study is for developing a programming education course to improve pre-service teachers' pedagogical content knowledge(PCK) of programming education. A 40-hour training course was designed with App Inventor, a block-based mobile programming environment, and with problem-based learning method and project-based learning method. After the curriculum was adopted to 12 undergraduate students, the effect of education was tested with a programming PCK questionnaire. As a result, after a 20-hour problem-based learning class, overall score and teaching method score were enhanced significantly. After another 20-hour project-based learning class, content knowledge, teaching method, and curriculum score were improved.

• Proceedings of the Korean Society of Computer Information Conference
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• 2017.07a
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• pp.307-308
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• 2017

본 논문에서는 Facebook 테트리스 게임에서 착안하여 모바일로도 실행시키고자 하였다. Facebook 테트리스와 같이 Hold, 미리보기, 줄 넘기기공격 등 세부 기능을 모두 구현하였다.Hold를 하면 다음에 나올 블록을 저장하여 필요할때 꺼내쓸수 있도록 한다. 미리보기를 하여 블록이 바닥에 도달했을시 예상위치를 나타내준다. 한 줄을 clear하였을 시 상대방바닥에 한줄이 올라오도록 한다. 안드로이드 프로그래밍으로 응용시 모바일 앱환경에서도 활용할수 있다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2015.01a
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• pp.337-338
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• 2015

최근 다양한 모바일 기기를 통한 여러 가지 문제지가 등장하고 있다. 본 논문에서는 여러 종류의 기출문제를 풀고 답을 확인할 수 있는 문제지를 개발하고자 한다. 먼저 로그인 폼을 만들어 회원정보를 담고 여러 가지 문제를 입력하여 문제지를 만들고 문제를 다 풀면 자동으로 채점을 하여 일일이 점수를 계산하는 시간낭비를 줄였다.

• Proceedings of the Korea Information Processing Society Conference
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• 2020.05a
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• pp.199-202
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• 2020

정보화시대로 넘어오면서 코딩 역시 중요한 교육으로 자리 잡고 있다. 초등학교는 물론 중, 고등학교도 교육적인 측면에서 프로그래밍을 중요시하고 있으며 C언어나 Java는 더이상 개발자만을 위한 언어로 인지되지 않는다. 하지만 코딩의 결과만 의존할 경우 정보보호를 하는 시큐어 코딩의 요소를 중요하게 여기지 않을 수 있다. 그 결과 DB는 물론 서버 에러를 비롯해 개인정보는 많은 위험에 노출될 수 있다. 기본적인 프로그래밍을 숙지한 개발자를 위해 더욱 안전한 코딩을 교육하고자 시큐어 C 코딩 앱을 기획하게 되었고, 정보보호를 코딩의 중요한 요소로 인지하기를 기대한다.

• Journal of Korea Game Society
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• v.15 no.2
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• pp.73-82
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• 2015

This study makes a proposal about Flash mobile game applications using Adobe AIR. In developing a mobile game, the developer programs in Flash ActionScript, and distributes and publishes the program using Adobe AIR so that the game can be played on an Android mobile device. In order to run the game, the player downloads and installs Android Adobe AIR onto the mobile device and sets up the published app. This study designed and implemented a mobile game application and showed that a mobile game is executed on a smart phone. This outcome may be applicable to various genres of apps. Moreover, this study analyzed the trends of mobile games, focusing on their genres and characteristics, and according to the results, most of them were mobile games using Kakao Talk. The analysis results also showed that the popularity ranking of games varied little among sites.