在初中数学教学中,代数知识与几何知识是紧密相连的,因而,教师培养学生数形结合的思想至关重要。数形结合,其实就是指把抽象的数学语言与直观的图象进行有机结合,使代数问题能与图形相互转化,从而使几何问题代数化或代数问题几何化。这是研究数学教学的一种极为重要的方法,主要强调将精确刻画的代数知识与形象直观的几何知识统一起来,将抽象思维与形象直观结合起来的一种数学思想方法。 In junior high school mathematics teaching, algebraic knowledge and geometric knowledge are closely linked, therefore, the idea of ​​teacher training students to form a combination is crucial. In fact, digital combination refers to the combination of abstract mathematical language and visual image, so that the algebraic problems can be interchanged with the graphics so as to make the geometric or algebraic problems geometric. This is an extremely important method to study mathematics teaching. It mainly emphasizes the method of combining mathematics with the accurate description of algebraic knowledge and the intuitive visual knowledge of the image, and combining the abstract thinking with the visual intuition of the image.