A Comparative Study of the Effects of Level-differentiated, In-depth Level Only, and Supplementary Level Only Laboratory Activities in Middle School Science Classes (중학교 과학 실험수업에 적용한 심화.보충형, 심화형, 보충형 수업의 효과 비교)
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- Journal of The Korean Association For Science Education
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- v.26 no.7
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- pp.790-797
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- 2006