“分数除以整数”是苏教版六年级上册的内容,它是分数除法教学的起始课,教材中编排了这样一个例题:量杯里有4/5升果汁,平均分给两个小朋友喝,每人可以喝多少升?教材是这样来呈现这部分内容的,首先出示了1升的量杯直观图(图略),然后引出两种计算方法,即4/5÷2=(4÷2)/5=2/5升,4/5÷2=4/5×1/2=2/5升。要求通过教学让学生掌握“分数除以整数”就是“用分数乘这个整数的倒数”这一通用法则。 “Score divided by the integer ” is the content of the sixth edition of the Sujiao version of the book, which is the beginning of fractional division teaching, textbook arrangement such an example: measuring cup with 4/5 liters of juice, divided into two Children drink, how many liters per person can drink? This textbook is to present this part of the content, first produced a 1 liter cup visual diagram (Figure omitted), and then leads to two calculation methods, namely 4/5 ÷ 2 = (4 ÷ 2) / 5 = 2/5 liter, 4/5 ÷ 2 = 4/5 1/2 ½ = 2/5 liter. Requires teaching to let students master “score divided by the integer ” is “multiply the reciprocal of this integer ” this general rule.