数形结合的思想是小学数学教材编排的重要原则之一,也是小学数学教材的一个重要特点,更是广大教师教学中常用的教学方法之一。“数形结合”思想的体现,能沟通数学知识之间的联系,能促进学生思维的协调发展,更能有效地促进学生对知识的主动建构。 The idea of ​​combining numbers and forms is one of the important principles in the arrangement of primary school mathematics textbooks and is also an important feature of primary school mathematics textbooks. It is also one of the commonly used teaching methods in the majority of teachers’ teaching. “Combination of number and shape ” reflects the connection between mathematical knowledge, can promote the coordinated development of students ’thinking, and can more effectively promote students’ initiative construction of knowledge.