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"fen zi he yuan zi " jiao xue she ji
Author(s): 
Pages: 40-43
Year: Issue:  2
Journal: Education in Chemistry

Abstract:  [设计说明]人教版课标实验教材九年级化学的这一节课是从宏观的物质世界跨进微观的物质世界的第一课,对于学生认识宏观物质的微观组成具有重要作用.同时,为进一步学习第四单元"物质构成的奥秘"奠定基础.因此,本节内容具有承上启下的作用.
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