概念是基础知识和基本技能的核心,正确理解概念是学好数学的基础,只有理解和掌握好基本概念、基本原理,才能灵活运用,才能有创造性的思维和发展,才能让学生取得理想的成绩。因此,以学生的生活常识为基础来理解概念,让学生了解概念产生的背景和条件,注重概念的辨析以及与相关概念的联系,重视概念的实际应用,是教学的重点。 Concept is the core of basic knowledge and basic skills. Correct understanding of concepts is the basis for learning mathematics. Only by understanding and mastering basic concepts and basic principles can we apply them flexibly and creative thinking and development can we achieve the desired result. Therefore, it is the focus of teaching to understand the concept based on the students’ common sense of life, to make the students understand the background and conditions of the concept, to pay attention to the analysis of the concept and the connection with related concepts, and pay attention to the practical application of the concept.