教师在教学活动之前,往往会根据教学目标与要求运用恰当的教学方法,对教学内容进行分析,以便“预设”在课堂上的“生成”。当教师开始把学生的注意力吸引到讨论话题上的时候,学生可能“生成”一些比较简单但又急需解决的问题。这是因为学生之间的经验与能力存在很大的差别,所以为了使学生对这些及时生成的问题产生兴趣,教师可以不直接把答案告诉学生,而是扮演 Teachers in teaching activities, often based on teaching objectives and requirements of the use of appropriate teaching methods, teaching content analysis, so that “default ” in the classroom “build ”. As teachers begin to draw students’ attention to the topic of discussion, students may “generate” some simple but urgent questions. This is because there is a big difference between students’ experiences and abilities. Therefore, in order to make students interested in these timely problems, teachers can not tell the students directly but instead play