《分数的初步认识》是人教版三年级上册的内容。本文从平均分月饼出发,提出“把一块月饼平均分给2个人,每人多少”的问题,从而引出1/2的形式,进而引出分数的概念。然后通过钟面,纸板和折绳等练习,巩固学生们的理解。 “Preliminary understanding of scores” is the content of the third edition of the PEP. Starting from the average monthly mooncake, this paper proposes the question of “dividing a mooncake equally to 2 individuals, each person ”, thus leading to the 1/2 form, leading to the concept of fraction. Then, through the practice of clock face, cardboard and rope, consolidate the students’ understanding.