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概念是人脑对客观事物共同本质特性的反映。概念包括内涵与外延两部分。内涵是概念所反映事物全部的共同本质的属性;外延是指具有这些共同本质特征的全体对象。数学中概念很多,它是学习数学的基础,只有了解、理解、掌握了概念,才能帮助学生正确地认识事物,改造现实,使数学真正成为一门应用科学。概念的掌握需要注意以下几个方面。
The concept is the reflection of the common essential characteristics of the objective things in the human brain. The concept includes connotation and extension in two parts. Connotation is the property of the common essence of all the things reflected in the concept; the extension refers to the whole object with these common essential characteristics. There are many concepts in mathematics. It is the basis of learning mathematics. Only by understanding, understanding and mastering concepts can we help students to correctly understand things and reform reality so that mathematics can truly become an applied science. The mastery of the concept needs to pay attention to the following aspects.