数形结合的思想,就是将数(量)与(图)形结合起来进行分析、研究、解决问题的一种思维策略,它将代数的精确刻画与几何的形象直观相统一,将抽象思维与形象直观相结合。数形结合的思想包含“以形助数”和“以数辅形”两个方面。在 The idea of ​​combining numbers and figures is a thinking strategy of analyzing, researching and solving problems by combining numbers (quantities) with (figure) shapes. It integrates the precise depiction of algebra and the visualization of geometric images, integrates abstract thinking with Intuitive combination of image. The idea of ​​combination of numbers includes two aspects: “aided number ” and “a number of auxiliary shape ”. in