论文部分内容阅读
变形是数学解题活动中不可缺少的部分。恒等变形是数学解题活动中基本且常用的方法,它灵活多变,表述形式多样,应用极为广泛。恒等变形是为了达到某种目的而采取的一种手段,是化归、转化和联想的准备阶段,它属于技能性的知识。恒等变形从大的方面分为两个方向:复杂变形和简单变形。在数学解题中,为了完成论证、求值、化简等任务,常对某些式子进行恒等变形,而一个式子往往有多种可能的变形方向,要因题而异,但是也有一定的规律。常见的
Deformation is an integral part of the mathematical problem solving activity. Equal deformation is the basic and commonly used method in solving mathematics problems. It is flexible and versatile. It has a wide range of applications. Equal transformation is a means taken to achieve a certain purpose. It is a preparatory phase of conversion, transformation and association. It belongs to the skill of knowledge. Identical deformation from a large area is divided into two directions: complex deformation and simple deformation. In the mathematical problem solving, in order to complete the demonstration, evaluation, simplification and other tasks, often constant deformation of some formulas, and an equation often have a variety of possible deformation direction, to vary, but there are certain The law. Common