数学建模即通过构建数学模型来解答数学问题.在初中数学中所涉及的数学模型主要包括函数、不等式、方程、几何图形等.在平时的解题中,同学们要注意巧用“数学建模”来搭建解题的桥梁,提高解题效率.一、构建函数模型,巧妙解答函数是初中数学课程中至关重要的内容,对于某些数学问题,同学们若能根据题设条件所给的结构特征,寻找出函数模型,将大大提升解题效率.例1某加工厂现有甲种原料450千克、乙种原料300千克,现计划用这两种原料加 Mathematical modeling is the construction of mathematical models to solve mathematical problems.Mathematical models involved in junior high school mathematics include functions, inequalities, equations, geometry, etc. In the usual problem-solving, students should pay attention to the use of “mathematics Modeling ”to build a bridge to solve the problem, improve the efficiency of problem solving.First, the construction of function model, clever answer function is a crucial part of junior high school mathematics curriculum, for some math problems, if students can according to the conditions Given the structural features, look for a function model, will greatly enhance the problem solving efficiency.Example 1 a processing plant now has 450 kg of raw materials, B 300 kg of raw materials, plan to use these two raw materials plus