Development and Analyses of Sensor-based Elementary Robot Programming PBL Problems using Line-tracer Robots (라인트레이서를 활용한 센서기반 초등로봇프로그래밍 PBL 문제 개발 및 적용 분석)
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- Journal of The Korean Association of Information Education
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- v.14 no.3
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- pp.301-310
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- 2010