在数学课堂教学中容易出现各种类型的错误。这些源于学生自身,即时动态生成的教学错误,因认知时空上的零距离,对学生来说更显生动和亲切。本文阐述了在课前,课中,课后三个环节中如何组织开发利用错误资源,解决教学中出现的错误是该疏还是堵的矛盾,优化教学方法,使我们的课堂更有效。 In mathematics classroom teaching prone to various types of mistakes. These originated from the students themselves, real-time dynamic generation of teaching errors, due to cognitive zero-time space and time, more vivid and cordial for students. This article elaborates how to organize the development and utilization of the wrong resources in the three links before class, in class and after class so as to solve the contradiction between the mistakes made in teaching and teaching, optimize the teaching methods and make our class more effective.