• The Journal of the Korea Contents Association
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• v.15 no.4
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• pp.530-544
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• 2015

We live in the modern society which is called as Knowledge-Information society. The national and social goal is to raise the creative person for preparing the rapidly changing society. Thus, the schools and families concentrate on and effort to enhance the creativity and problem solving ability. Specially, the school is pushing forward the STEAM education and Software education for raising the creativity person and enhancement of national competitiveness. In this study, we suggested for STEAM education the way how we utilize the App Inventor which was supported by MIT and came up as a computer programming language for Software education, and we verified and evaluated through professional group verification. We completed STEAM instructional design according to the results from the professional group verification, and we suggested the authentic instruction for STEAM education. In addition, we suggested the further prospects of Software education and instructions through going through the characteristics and application plan of App Inventer in terms of educational computer programming language.

• The Journal of the Korea institute of electronic communication sciences
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• v.12 no.4
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• pp.525-532
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• 2017

The system is consisted of arduino and sensors for protecting bicycle and safety of driver. The speed indicator is composed of speed alarms which are less than 15km/h, 15~30km/h, over 30km/h through limit switch. At that time, the accuracy is 96.6% compared to actual speed. Also, It gives a person warning ablut the obstacle of 5cm tall through ultrasonic sensor in night. Auto Lock System is operated to protect bicycle and the text message is sent to the user, if the bicycle lock was broken. This system puts emphasis on safety and usability, providing a application to know consuming calories.