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集合是近代数学中的一个重要概念,它不仅与高中数学的许多内容有着紧密的联系,而且已经渗透到自然科学的众多领域,应用十分广泛,掌握好集合的知识既是数学学习本身的需要,也是全面提高数学素养的一个必不可少的内容.由于集合单元的概念抽象、符号术语多,研究方法跟学习初中数学时有着明显的差异,致使部分同学初学集合时,感到难以适应,
Collection is an important concept in modern mathematics. It not only has close connection with many contents of high school mathematics, but also has penetrated into many fields of natural science. It has a wide range of applications. Mastering a good set of knowledge is not only the needs of mathematics learning itself, but also It is an indispensable part of improving mathematics literacy in an all-round way. Due to the conceptual abstraction and symbolic terminology of aggregating units, research methods are obviously different from those of junior high school mathematics, which makes some students feel difficult to adapt when they begin to gather.