数学教学中反例的作用与构造

Negative Exanple and Its Construction in Math Teaching

本文通过反例的作用与构造 ,以命题正、反两面相比较 ,更加正确理解概念、命题以及相互关系 。

This paper sets out to discuss the function and the construction of negative examples by drawing a comparison between the positive and the negative side of a proposition.It aims at obtaining a better understanding of concepts,propositions,and the correlation between the two,and at showing the significance and function of negative examples.