教材永远是学习的重要“材料”。教师只有吃透教材,才能如鱼得水地把知识传授给学生。教材大都是经过各路专家精心编写的,是经过严密的论证编排的,所以,上课不能把教材扔一边,只顾自学自的。教材作为构成教学系统的最基本的要素,是教师教和学生学不可缺少的重要媒体,但长期以来人们对教材含义的理解却有着诸多歧义。教材提供的是教学的蓝本,是探寻科学有效教学的一条捷径。不管哪种版本的教材,无不是按照由浅入深、循序渐进的原则而构成 Teaching materials will always be important to learn “material ”. Only through teaching materials, teachers can pass the knowledge to the students. Textbooks are mostly prepared by experts from all walks of life, is rigorously arranged, so class can not throw aside the textbooks, only self-taught. Teaching materials, as the most basic element of teaching system, is an indispensable important medium for teachers and students. However, people have long had a lot of ambiguity in understanding the meaning of teaching materials. Textbooks provide a blueprint for teaching, is a shortcut to explore science and effective teaching. No matter what version of the textbooks, are not in accordance with the principle of progressive, step by step and constitute