现实世界是数学的丰富源泉。著名数学家华罗庚说过:“人们对数学产生枯燥无味、神秘难懂的印象,原因之一便是脱离实际。”小学数学课程标准要求:“数学教学必须从学生熟悉的生活情景和感兴趣的事物出发。”使他们体会到数学就在身边,从而感受到数学的趣味和作用,体验到数学的魅力。 The real world is a rich source of mathematics. Hua Luogeng, a famous mathematician, said: “One of the reasons why people have the impression of being dull and mysterious to mathematics is that they are out of touch with reality.” The mathematics curriculum standards of primary schools require: “Mathematics teaching must be based on the students’ familiar situations and feelings Things of interest set out. ”Make them feel math around, so as to feel the fun and role of mathematics, to experience the charm of mathematics.