集合是高中数学中的一个重要概念,作为一种思想、一种语言和一种工具,集合的知识已经渗透到自然科学的众多领域.然而,由于集合概念抽象,符号术语多,同学们往往感到难以适应,常常因为概念理解上的偏差而造成解题失误,进而影响对新知识的掌握.针对同学们学习中的薄弱环节,本文提出以下几个注意点,希望能帮助大家加深对集合知识的理解,少走弯路,提高学习效果. Collections are an important concept in high school mathematics. As an idea, a language, and a tool, a collection of knowledge has penetrated into many fields of natural science. However, due to the abstraction of a collection concept and a large number of symbolic terms, classmates often feel that Difficult to adapt, often due to deviations in the concept of understanding and resulting in the problem of mistakes, and then affect the mastery of new knowledge. For students in the learning weaknesses, this article puts forward the following points of attention, hoping to help everyone deepen the knowledge of the collective Understand, avoid detours and improve learning.