教学过程是动态生成的。尽管教师在备课时已经对课堂上可能发生的情况做了充分的预设,但是在课堂中,依然有太多的不确定性,更有出乎意料之外的情况发生。面对信息多变、丰富多彩的课堂,教师要扮好倾听者、重组者、等待者、提升者这几种角色,要做到心中有案、行中无案,寓有形的预设于 The teaching process is dynamically generated. Although teachers have made full assumptions about what might happen in the classroom during lesson preparation, there are still too many uncertainties in the classroom and more unexpected things happen. In the face of changing information and rich and colorful classrooms, teachers should play the roles of listeners, reorganizers,