“生成”是新课程倡导的一个重要的教学理念,是教师在师生交往互动、共同发展的过程中,根据课堂学情的突然变化,采取积极有效的应对方法,使课堂产生质变、飞跃的过程。所以,“不可预测性”就成了生成的最大特征。这种不可预测性,往往让许多教师担心教学过程中会节外生枝,无法顺利完成课前预设,达到预期的教学效果。这也就出现了我们在听课过程中经常见到的一幕:上课前,学生被再三嘱咐要“配合”执教老师,不乱插 “Generate ” is an important teaching idea advocated by the new curriculum. In the process of interactive interaction and common development between teachers and students, teachers take a positive and effective coping method according to the sudden changes of classroom learning conditions to make the classroom produce qualitative change, Leaping process. So, “unpredictability” becomes the biggest feature of generation. This kind of unpredictability often causes many teachers to worry that they will be excused themselves during the teaching process and can not successfully complete the pre-lesson preset to achieve the expected teaching effect. This also appeared in the course we often see the scene: Before the class, students were repeatedly asked to “co-ordination,” coaching teachers, indiscriminately inserted