In the system of virtual studying, A consolidative scheme for learner's self-centered studying -for 4th grade mathematics in elementary school- (가상학습시스템에서 학습자의 자기주도적 학습을 위한 집중도 강화 방안 -초등학교 수학과 4학년을 중심으로-)
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- Journal of The Korean Association of Information Education
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- v.3 no.1
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- pp.125-133
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- 1999