数形结合思想在二次函数中的应用

Application of Number-Shape Combination in Quadratic Function

二次函数是初中数学的重要部分,也是难点。在教学中充分利用"数"与"形"结合的方法,并通过这种结合,深化学生对概念的理解,让学生直观地理解二次函数的本质。使用"数"和"形"结合的思想可以使复杂的问题变得直观,并且可以培养学生的抽象思维能力,为学生提供解决问题的简单方法,奠定数学基础。

Quadratic function is an important part of junior high school mathematics,but also a difficult point.Making full use of the combination of number and shape in teaching,and through this combination,students can deepen their understanding of concepts and intuitively understand the essence of quadratic function.Using the combination of"number"and"shape"can make complex problems intuitive,and can cultivate students’abstract thinking ability,provide students with a simple way to solve problems and lay the foundation of mathematics.