教学是由备课、上课、课后辅导三个紧密衔接的环节组成的,每个环节中部包含着矛盾。备课时的主要矛盾是教师与教材之间的矛盾,教师要讲授教材而又还没有熟悉和掌握。这就要钻研教材,还要把学生放进去,考虑如何启发和讲授,才能创设条件,由不熟悉转化到熟悉,由没有掌握到掌握,使上 Teaching is prepared by the preparation class, class, after-school counseling three closely linked links, each link contains contradictions in the middle. The main contradiction in lesson preparation is the contradiction between teachers and teaching materials, teachers should teach the teaching materials but not yet familiar with and master. It is necessary to study textbooks, but also to put students in, consider how to inspire and teach in order to create conditions, from unfamiliar to translate into familiar with, from not grasp to master