新课标指出,要使学生感受数学与现实生活的联系,要求数学教学必须从学生熟悉的生活情境和感兴趣的事物出发,为他们提供观察和操作的机会.这就要求教师在教学中设置来自生活的场景,引导学生参与有意义的活动,让其在完成任务的过程中,体会数 The new curriculum standard pointed out that to make students feel the relationship between mathematics and real life, mathematics teaching must be familiar with the students from the familiar life situations and things of interest, to provide them with the opportunity to observe and operate.This requires teachers to set in the teaching Scene from life, guide students to participate in meaningful activities, so that in the process of completing their mission, experience