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概念是数学理论体系中十分重要的组成部分,它是构成判断、推理的要素.因此,必须搞清概念的内涵和外延,为判断和推理奠定基础.数学的概念学习包括数学定义的学习.定义就是揭示概念的内涵或外延的逻辑方法,因此,对数学概念的定义研究尤显重要.本文以椭圆为例,从懂定义、会定义、熟定义、巧用定义四个方面来谈谈对数学定义的探究,并利用“定义”解决一些数学问题.一、懂定义(1)平面内一个动点到两个定点F_1,F_2
Concept is a very important part of mathematical theory system, it is the element of judgment and reasoning, therefore, we must understand the connotation and extension of concept and lay the foundation for judgment and reasoning.Mathematical concept learning includes the definition of mathematical learning. Is to reveal the concept of the connotation or extension of the logical method, therefore, the definition of mathematical concepts is particularly important.In this paper, the oval, for example, from the definition, the definition, the definition of cooked, clever use of the definition of four aspects to talk about mathematics Definition of the inquiry, and the use of “definition ” to solve some mathematical problems. First, to understand the definition of (1) a moving point in the plane to two fixed points F_1, F_2