数学是一门具有高度抽象性和严密逻辑性的学科。数学概念是数学知识体系的基础,是理解和掌握数学理论和方法的基础。学生学习数学出现的困难,往往同没有很好掌握有关数学概念密切相关。在教学过程中,使学生正确理解、牢固掌握和准确运用概念,这不仅是数学概念课本身的教学要求,同时也是提高教学质量的前提条件。要想达到上述目的,一方面要依靠学生自己主动学习、动手动脑,另一方面还有赖于教师改进课堂教学方法,善于引导学 Mathematics is a highly abstract and rigorous logic of the discipline. Mathematical concepts are the foundation of the mathematical knowledge system and the basis for understanding and mastering mathematical theories and methods. Students’ difficulties in learning mathematics are often closely related to not having a good grasp of mathematical concepts. In the teaching process, to enable students to correctly understand, firmly grasp and accurately use the concept, which is not only the teaching of mathematical concept itself, but also improve the quality of teaching prerequisites. To achieve these goals, on the one hand to rely on the students themselves take the initiative to learn, hands and minds, on the other hand depends on the teachers to improve classroom teaching methods, good at guiding learning