集合是中学数学的一个重要概念 ,是研究数学的工具 .集合概念比较抽象 ,高一学生由于学习方法与思维方式的不适应 ,对集合及其有关的概念的理解浮于表面 ,体现在解题过程中考虑不周的现象屡见不鲜 ,或者对给出的集合表达式不能转化成相关的数学知识而使解题半途而废 .针对学生 Collection is an important concept of middle school mathematics, and it is a tool for studying mathematics. The concept of collection is relatively abstract. Because of the incompatibility between the learning method and the way of thinking, the students of Grade One are superficial to the understanding of the collection and its related concepts. The phenomenon of ill-conceivedness in the process is not uncommon, or the given set expression can not be transformed into relevant mathematical knowledge and solve the problem halfway.