对比是认识事物和现象的一种科学的思维方式。通过对比,可以比较清晰地发现认识对象的异同,从而加深对认识对象的认识,纠正原有的错误概念或错误理解。在新课程学科教学中,对比是一种常用的认知方法。当然,在数学教学中也不例外。一、新旧知识的对比教材中的数学知识构成了一个长长的链条,他们之间既有区别又有联系。很多学生学得越多,思维越混乱。复习 Contrast is a scientific way of thinking that recognizes things and phenomena. By contrast, the similarities and differences of the object of cognition can be found more clearly, so as to deepen the understanding of the object of cognition and correct the original erroneous concept or understanding. Contrast is a commonly used cognitive method in the teaching of new curriculum. Of course, in mathematics teaching is no exception. First, the contrast between old and new knowledge Teaching materials in mathematics constitute a long chain, there are both differences and contact between them. Many students learn more chaotic thinking. review