“教材只能作为教课的依据,要教得好,使学生受到实益,还靠老师的善于运用。”叶圣陶老先生所说的善于运用,就是指教师要主动、灵活地把握教材。要做到这一点,教师首先要认真钻研教材,通过对教材的分析研究,掌握教材的知识体系,理解编者的意图,准确地把握教材的重点、难点与关键,把教材本身固有的逻辑顺序与学 “Teaching materials can only serve as the basis for teaching, to teach well, so that students benefit, but also by the teacher's good use.” Ye Shengtao old Mr. said good at using, refers to the teacher to take the initiative and flexibility to grasp the teaching materials. To do this, the teacher must first conscientiously study the teaching materials, through the analysis of textbooks to master the knowledge system of textbooks, understand the intent of editors, accurately grasp the key, difficult and key teaching materials, the inherent logical order and learn