听课时,常常可以看到一些课上得十分顺利,老师讲得准确无误,学生个个对答如流,把一节课演绎得完美无缺。可是这样的课上得还有意义吗?学生都会了,老师为什么还要教呢?学生在课堂上没有问题、没有矛盾,老师的价值又如何体现呢?因此,那些近乎完美的课不见得是好课,真正的好课是那些善于利用课堂上出现差错的课。课堂是不可预测的,错误也是难免的。作为教师,不能要求学生不犯错误,而应合理地运用学生所犯的错误,引导学生从错误中找到正 Attending lectures, often can see some of the class was very smooth, the teacher speaks accurately, the students all correct, the deduction of a class was perfect. But is there any meaning for such a class? Students will, why teachers should teach it? There are no problems in the class, there is no contradiction, what is the value of the teacher? Therefore, those near-perfect classes do not necessarily have to be Good class, the real good class is those who are good at using the classroom error. Classroom is unpredictable and mistakes are inevitable. As a teacher, students can not be asked not to make mistakes, but should make reasonable use of the mistakes made by students to guide students to find positive