老师要用一双慧眼,时刻关注并及时捕捉课堂上产生的意料之外的生成,捕捉有效信息,实现教学效果的最大化。本文尝试从敏于发现,善待生成;开放预设,丰富生成;灵动课堂,和谐生成的角度探讨非预设的生成和课前的预设有效地融合,实现教学效果的最大化。 Teachers need to use a pair of eyes, always pay attention to and timely capture the unexpected generated in the classroom, to capture the effective information, to maximize the effectiveness of teaching. This paper attempts to explore the relationship between non-presumed production and pre-lesson preconditions in order to maximize teaching effectiveness from the perspectives of being sensitive to discovering, treating well, opening preconditions and enriching production;