培养学生应用数学的意识和能力是数学教学的一个重要方面,而其前提是必须建立数学模型。因此,小学数学教学的过程就是教师引导学生不断建模和用模的过程。《数学课程标准》指出“让学生亲身经历将实际问题抽象成数学模型并进行解释与应用的过程,进而使学生获得对数学理解的同时,在思维能力、情感态度与价值观等多方面得到进步和发展。”这就要求教师 Developing student awareness and ability in applied mathematics is an important aspect of mathematics teaching, and the premise is that mathematical models must be established. Therefore, the process of primary mathematics teaching is the process of teachers to guide students to continue modeling and use of mold. The standard of mathematics curriculum states: “Students can experience the process of abstracting practical problems into mathematical models and interpreting and applying them in order to enable students to gain a better understanding of mathematics while making progress in thinking skills, emotional attitudes and values, etc. And development. ”This requires teachers