【摘要】 本文对微分中值定理的传统教学提出了改革的方法 ,并对常规所设的辅助函数进行了综合比较 ,给出了各种辅助函数的几何模型 ;另外 ,还另辟溪径 ,给出一个拉格朗日定理的独立证法。更多还原

【Abstract】 In this article,will put forward a progressing method to the traditional teaching of differential mean-value theorem,and make a comprehensive contrast to the assistant functions which are general designed in the proof of the theorem.We’ll also give several kinds geometric models on assistant functions.Besides,we will give a new proof to the LaGrange’s theorem.更多还原