“分桃子”是北师大版三年级上册第六章除法的第一课时,其教学目标是探索并掌握两(三)位数除以一位数,商是两(三)位数的计算方法,能正确进行计算。并能结合具体的情境,培养提出问题的意识,提高解决问题的能力。教学难点是让学生理解其竖式的算理及其书写格式。但是,在教学过程中,有的学生用口算直接算出结果,或仍然摆小棒计算,或竖式书写仍存在问题。本文拟探讨为什么会出现这些问题?如何解决这些问题? “Sub-peach ” is the first division of the sixth division of the Beijing Normal University version of the upper third grade, the teaching goal is to explore and master two (three) digits divided by one digit, quotient is two (three) digits The calculation method, can be calculated correctly. And can combine specific contexts, raise the awareness of raising questions and improve the ability to solve problems. The difficulty of teaching is to make students understand its vertical arithmetic and its writing format. However, during the teaching process, some students directly calculate the result by using the word count, or still calculate the small stick, or there is still a problem with the vertical writing. This article intends to explore why these problems occur and how to solve these problems?