A qualified teacher much have profound. knowledge of the structures of discipline and teaching material, and be good at turning the structure of teaching material into the structure of pedagogy.
一个合格的教师，要深谙学科结构，要精通教材结构，尤其要创造性地实现将教材结构转化为适宜的教学结构。
According to the defect in the teaching of elementary chemistry, the teaching model of "thread" with the main part of material structure is advanced.
前言： 根据元素化学教学中存在的不足，提出实施以物质结构为主体的“主线式”教学模式。
Structural method demands: Analyse the knowledge structure of the teaching material;
结构教学法要求：分析教材的知识（合方法、能力）结构；
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