In polytechnic mathematic teaching,one of the most important conception is derivative conception because if one doesn't quite grasp it he will not get well in later studying. This paper expounds how to start with a simple, generic conception and design teaching for an ideal teaching purpose.%在高职数学的教学中，导数的概念是微积分最基本最重要的概念之一，它关系到后面一系列的运算和应用，若对该概念理解不透彻，则对后面的学习将会大打折扣。在对导数概念的教学时采取从简单入手，提高学习积极性为主导，强化概念内涵和应用的挖掘出发，教法上进行精心的教学设计，可在教学中达到理想的教学目标。
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