“从一种形式到另一种形式的转变,是数学科学最有力的杠杆之一。”实践中,人们面对数学问题,如果直接应用已有知识不能或不易解决该问题时,往往需要对解决的问题不断转化形式,把它归结为能够解决或比较容易解决的问题,最终使原问题得到解决,这种思想方法称为转化思想。小学阶段,学生在学习数学知识和解决数学问题的过程中,转化思想应用非常广泛。从数的认识、运算方法的形成到方程的解法,从认识图形特征到探究图形的面积、体积的计算,再到解决各类实际问 “The shift from one form to another is one of the most powerful levers in mathematical science.” In practice, people face math problems, and if direct application of prior knowledge fails or can not easily solve the problem, It is necessary to continuously transform the solution to the problem, attributing it to a problem that can be solved or relatively easy to solve, and finally solving the original problem. This method of thinking is called transformation thinking. In primary school, students are widely used in the process of learning mathematics and solving math problems. From the number of understanding, the formation of computing methods to the solution of the equation, from understanding the characteristics of graphics to explore the graphics area, the calculation of the volume, and then to solve all kinds of practical questions