应用数学去解决各类实际应用题时,首先要在阅读材料、理解题目的基础上,把实际问题抽象成数学问题,利用学过的数学知识建立对应的数学模型,再利用数学知识对数学模型进行分析、研究,得到结论,从而解决实际问题。解应用题应从下面三步入手:一、审题要求学生读懂题意,理解实际背景,领悟其数学实质。二、建模即建立数量关系。它是数学应用题最关键,也是最困难的一步。常见的数学模型有以下几种方法: When applying mathematics to solve all kinds of practical problems, we must first abstract the actual problems into mathematical problems based on reading materials and understanding the problems, use the learned mathematical knowledge to establish the corresponding mathematical models, and then use mathematical knowledge to analyze the mathematical models To analyze, research, get conclusions, so as to solve practical problems. Solution application questions should start from the following three steps: First, the problem-solving requires students to understand the meaning of the questions, understand the actual background, to understand its mathematical essence. Second, modeling is the establishment of quantitative relations. It is the most critical mathematical application problem, but also the most difficult step. There are several common mathematical models: