平面几何历来被认为是培养学生逻辑思维能力的课程,在当前提倡培养学生创新能力的情形下,平面几何似乎无用武之地.其实,这是一种误解.如果在平面几何教学中进行变式教学,不仅可以传授知识、培养学生的逻辑思维能力,也能培养学生的创新能力.下面就来谈谈平面几何教学中的几种变式:1题设与结论互换的变式平面几何中许多命题是以假言命题的形式出 Plane geometry has always been considered to be a logical course to train students ’ability in the current promotion of students’ ability to innovate, the plane geometry seems useless. In fact, this is a misunderstanding .If the plane geometry teaching variant teaching , Not only can impart knowledge, develop students ’ability of logical thinking, but also cultivate students’ ability to innovate.Thereafter, we will talk about several variants of plane geometry teaching: Propositions are in the form of hypothetical propositions