在数学原理的教学中,通常会使用变式策略。变式是概念由具体向抽象过渡的过程中,为排除一些由具体对象本身的非本质属性特征带来的干扰而提出来的。一旦变更具体对象,那么与具体对象紧密相联的那些非本质特征就消失了,而本质特征就显露了出来。数学概念就是通过变式进行比较,舍弃非本质特征并抽象出本质特征而建立起来的。变式是促进学 In mathematics teaching, variant strategies are often used. Variants are the transitions of the concept from concrete to abstract, in order to exclude some interference caused by the non-essential attribute of the concrete object itself. Once the specific object is changed, the non-essential features that are closely associated with the specific object disappear, and the essential features are revealed. Mathematical concepts are created by comparing variants, discarding non-essential features and abstracting essential features. Variant is to promote learning