当今的课堂不应该是封闭的,应该是一个动态的、生成的过程,师生都是这个过程中的主体。这样的教学过程因为教师的教案被打破,带来了师生认知上的不平衡,这时候就要求我们的教师对于学生的“节外生枝”加以引导,巧妙利用,采取积极的应对措施,寻求教学的新的平衡,使整个教学过程从有序(预设)到无序(生成),再到有序(采取相应的对策)。 Today’s classroom should not be closed, it should be a dynamic, generated process, teachers and students are the main body in this process. This teaching process because teachers’ lesson plans are broken, bringing about cognitive imbalance between teachers and students, this time requires our teachers to guide the students “ex situ ”, clever use, take positive response measures, Seeking a new balance of teaching, the entire teaching process from order (presupposition) to disorder (generation), to order (to take appropriate measures).