数学概念是反映现实世界的空间形式和数量关系的本质属性的思维形式。数学概念是数学知识的基础,是数学教材结构最基本的因素,是数学思想与方法的载体。正确理解数学概念是掌握数学基础知识的前提。学生如果不能正确地理解数学中的各种概念,就不能很好地掌握各种法则、公式、定理,也就不能应用所学知识去解决实际问题。因此,抓好数学概念的教学是提高数学教学质量的关键。数学概念比较抽象,初中学生由于年龄、生活经验和智力发展等方面的限制,要接受教材中的所有概念是不容易的。在教学过程中,一些教师不注意结合学生心理发展特点去分析事物的本质特征,只是照本宣科地提 Mathematical concepts are the forms of thinking that reflect the essential attributes of the spatial form and quantitative relations in the real world. The concept of mathematics is the basis of mathematical knowledge, the most basic factor in the structure of mathematics teaching materials, and the carrier of mathematical ideas and methods. Correct understanding of mathematical concepts is a prerequisite for mastering the basics of mathematics. If students can not correctly understand the various concepts in mathematics, they can not master all kinds of laws, formulas and theorems well and can not apply what they have learned to solve practical problems. Therefore, to grasp the teaching of mathematical concepts is to improve the quality of mathematics teaching. The concept of mathematics is abstract. Because junior high school students are limited in age, life experience and intellectual development, it is not easy to accept all the concepts in the textbooks. In the process of teaching, some teachers do not pay attention to the psychological development characteristics of students to analyze the nature of things, but according to the propaganda