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指导学生讲课是笔者正在努力探索的一种化学课堂教学模式。该模式能较好地体现老师主导和学生主体作用，有利于培养学生多方面的能力。指导学生讲课的基本操作过程：提出要求——分组讨论——学生讲述——补充答疑。首先，老师根据教材和大纲向同学们提出本节课的目的要求，然?
Instructing students to lecture is a chemistry classroom teaching mode that the author is trying to explore. This model can better embody teacher-led and student-centered roles and is conducive to cultivating students’ abilities in various aspects. Instruct students in the basic operating process of lectures: make requirements - group discussion - students tell - to answer questions. First of all, the teacher proposed the purpose of this lesson to the students according to the teaching materials and outline.