集合是中学数学中最基本的概念,其重要性不言而喻.然而由于集合知识概念新,符号多,初学者往往顾此失彼,为此下面介绍集合概念教学中的八项注意,以期能起帮助同学们加深对集合有关概念的理解,少走弯路,提高学习效率. Collection is the most basic concept in middle school mathematics, and its importance is self-evident. However, due to the new concept of set knowledge, many beginners tend to miss each other. For this reason, the following eight concepts of collective concept teaching are introduced to help The students deepened their understanding of the concepts involved in the collection, avoided detours and improved learning efficiency.