数型结合思想是一种很重要的数学思想,它是提高学生数学能力的一大利器.数学研究的对象是数量关系和空间形式,即数与形两个方面,把数量关系的研究转化为图形性质的研究,或者把图形性质的研究转化为数量关系的研究,就是数形结合的思想.数形结合的思想就是把抽象的数学语言与直观的图形结合起来,把抽象思维与形象思维结合起来.在使用的过程中,由“形”到“数”的转化,往往比较明显,而由 It is an important tool to improve students’ mathematical abilities.Mathematical research objects are quantitative relations and spatial forms, that is, numbers and forms are two aspects, the study of quantitative relationship into The study of the nature of graphics, or the study of the nature of graphics into the study of quantity relations, is the idea of ​​combining numbers and shapes.The idea of ​​combining numbers and shapes is to combine abstract mathematical language with intuitive graphics to combine abstract thinking with imagery thinking In the process of using, the conversion from “form ” to “number ” is often obvious,