分数的初步认识是人教版小学数学三年级的内容。教学时我让学生通过以下三个活动初步理解分数的意义。涂一涂通过涂一涂树叶、衣服、正六边形、圆形、正方形图形的二分之一,体会二分之一不仅可以表示半个苹果,还可以表示半片树叶、半件衣服、半 The initial understanding of the scores is the third grade of PEP. When teaching, I asked the students to understand the meaning of the scores through the following three activities. Apply a coating of painted leaves, clothing, regular hexagons, circles, squares, one-half of the graph, not only can represent half a half apple, but also that half leaves, half clothes, half