一、联系生活故事,引发数学问题生活是数学的源泉,数学是一个活的、动态的、开放的活动。教师要善于关注社会,关注学生生活,为学生提供生活中的现象,引发数学问题。例如,在教学“减法的性质”时,我先出示课前从班级调查出来的一个生活片段。星期日,刘洋同学让妈妈带她去书店了,先从大众书店花12元钱买了一本语文课外读物,又从新华书 First, contact the story of life, triggering mathematical problems Life is a source of mathematics, mathematics is a living, dynamic and open activities. Teachers should be good at social concern, focus on student life, provide students with the phenomenon of life, triggering mathematical problems. For example, when teaching “The Nature of Subtraction,” let me show you a section of life from a class survey before class. Sunday, Liu Yang students let her mother took her to the bookstore, first spent 12 yuan from the public bookstore to buy a Chinese extra-curricular reading, and from the Xinhua Book