对于“学生懂得了的,教师不要再讲;学生不懂的,才是教师的教学内容”这句话,在我们教学领域还没有一个权威科学的认识判断,在处理新知和旧知过程中缺少确定的认识和对待的方法,模糊其中的关系,容易使教师走进教学误区。本文就这个问题提出自己的见解和处理方法。 For “students know, teachers do not say; students do not understand, is the teaching content of teachers,” this sentence, in our teaching field does not have an authoritative scientific understanding of judgment, in dealing with the new knowledge and the old knowledge process The lack of a clear understanding and treatment methods, fuzzy relationship among them, easy to make teachers into the teaching errors. This article puts forward my own opinions and solutions to this problem.