What is the derivative of a function?  

作　　者：梁宇学[1] 

机构地区：[1]首都师范大学附属中学

出　　处：《中学生数学（高中版）》2013年第3期44-46,共3页Mathematics

摘　　要：When you find the tangent line to a curve at one point and the velocity of an object , you will find both of them involving the same type of limit.Let’s start with the difference quotient.We know the derivative of a function at a point （a,f（a））（or a number a , or cc=a）. Please consider the example below by using the Graphing--Calculator （TI--84 plus）.

关 键 词：高中 数学教学 教学方法 不等式 

分 类 号：G633.6[文化科学—教育学]