The Comparison of the Amount of Chemistry Learning in the Elementary School Science Textbooks Developed under the 6th and 7th National Curricula (제6, 7차 교육과정에 의한 초등학교 과학 교과서에서 화학 학습량 비교)
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- Journal of Korean Elementary Science Education
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- v.22 no.1
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- pp.29-36
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- 2003