Concept teaching is especially important for mathematics. You can't learn mathematics without knowing the concept. So what is a "mathematical concept"? Mathematical concept is the reflection form of human brain on the quantitative relationship of real objects and the essential characteristics of spatial form, that is, a form of mathematical thinking, which is the basis for forming mathematical ability. Pupils are in the stage of forming logical abstract thinking. In order to make them fully and correctly understand mathematical concepts, various teaching methods should be adopted flexibly. According to many years' teaching experience, the author summarizes the specific methods of mathematical concept teaching as follows: 1. Intuitive images can guide students to acquire concepts through observation, analysis, comparison, induction and generalization. For example, when learning the concept of "parallel lines", the author asks students to observe some familiar examples, such as the upper and lower edges of blackboards, the upper and lower edges of tables and doorframes, railings, etc., and then find out the essential attributes of * * according to the attributes of each example. The blackboard can be regarded as two straight lines on the same plane, and both sides can extend indefinitely and never intersect. The properties of tables, doorframes and railings can also be analyzed. By comparison, we can find that they have the same properties: they can be abstractly regarded as two straight lines; Two straight lines are on the same plane; The distance between them is equal everywhere; Two straight lines have nothing in common, etc.