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在初中阶段的数学学习中,函数是重要的内容之一.函数部分内容渗透的数学思想多,涉及的知识面广,综合性强,是初中数学学习的难点.一、函数概念的导入策略函数的概念,对于初中生来说是相当难理解的.为了使学生易于理解,我举了两个实例.实例1:在男子百米赛跑中,谁先撞击终点线,就说他的速度最快,他就是冠军.如果参赛选手多,就要进行分组比赛.很显
In the junior middle school mathematics learning, the function is one of the important content.Multiple part of the function of the infiltration of mathematical thinking, involving a wide range of knowledge, comprehensive, is the difficulty of junior high school mathematics learning.First, the introduction of function concept strategy function Concept, for junior high school students is quite difficult to understand .In order to make students easy to understand, I cite two examples.Example 1: In the men’s 100 meters race, who hit the finish line first, say that he’s the fastest , He is the champion.If there are more contestants, it is necessary to carry on the group competition