世界著名教育心理学家奥苏伯尔坦言:“假如让我把全部教育心理学仅仅归结为一条原理的话,那么,我将一言以蔽之曰:影响学习唯一最重要的因素,就是学习者已经知道了什么。要探明这一点,并应据此进行教学。”因而,学习者已知道什么(学生的学情),正是教师进行教学的基础。特级教师薛法根老师曾说过:学生会的不教;学生能自己懂的不教;教了学生还是不会的不教。这三不教,需要教师对学生的学情有充分的了解和掌握。而具体到一节课上,也只有做到真正吃透学生学 Ausubel, a world-renowned educational psychologist, admits: “If I put all educational psychology down to just one principle, then I will stop by saying that the only factor that influences learning is learning To know this, and to teach it accordingly. ”Thus, what learners know (student learning) is exactly what teachers are teaching. Superficial teacher Xue Fagan teacher once said: the students do not teach; students can not understand their own teaching; teach students or not do not teach. The three do not teach, teachers need to have a full understanding of the students learned and mastered. Specific to a class, only to really understand the students learn