小学数学课程标准指出,数学教学活动必须建立在学生的认知发展水平和已有的知识经验基础上,向他们提供充分的从事数学实践活动和交流的机会,使他们在自主探索和合作交流的过程中真正理解和掌握基本的数学知识与技能、数学思想和方法,获得广泛的数学活动的经验,成为数学学习的主人。而解决问题是数学课程的重要目标之一,解决问题需要相应的策略做支撑。“转化”是数学中最常用最基本的思维方式之一。所谓解题的转化策略,就是在解题过程中,不断转化 The mathematics curriculum standards for primary schools pointed out that mathematics teaching activities must be based on the students’ level of cognitive development and existing knowledge and experience and should provide them with opportunities to engage in mathematical practice activities and exchanges so that they can independently explore and cooperate with each other The process of truly understand and master the basic mathematical knowledge and skills, mathematical ideas and methods, access to a wide range of mathematical activities experience, become the master of mathematical learning. Solving the problem is one of the important goals of the mathematics curriculum. To solve the problem, we need corresponding strategies to support it. “Transformation ” is one of the most commonly used and basic ways of thinking in mathematics. The so-called solution to the problem of conversion strategy, that is, in the process of solving problems, continuous transformation