1. Mathematical concept is a form of human brain's reflection on the quantitative relationship of real objects and the essential characteristics of spatial form, that is, a form of mathematical thinking.

2. In mathematics, judgment and reasoning, as general forms of thinking, are expressed in the form of theorems, rules and formulas, and mathematical concepts are their basis. Correctly understanding and flexibly using mathematical concepts is the premise of mastering basic mathematical knowledge and operational skills, and developing logical argumentation and spatial imagination.