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1 教材分析人教版实验教材对方程与函数的编排打破了传统的“先出方程,再出函数”的做法,代之以随数量关系的变化循环有序地安排一次方程、一次函数、二次方程、二次函数.这样做有利于学生在螺旋上升的知识体系中不断加深对相关知识的理解;也便于从联系的角度认识方程和函数.就“一次函数”这一章而言,教材除了介绍函数、一次函数的概念,探讨一次函数
1 textbook analysis PEP textbook experimental teaching of equations and functions to break the traditional “first out of the equation, the function out of ” approach, instead of changing with the quantitative relationship between the circular arrangement of an orderly equation, a function , Quadratic equation, quadratic function, which will help students to deepen the understanding of relevant knowledge in the spiraling knowledge system and also to understand equations and functions from the perspective of connection. In terms of, textbooks in addition to introduce the function, the concept of a function, to explore a function