论文部分内容阅读
整十数除两、三位数,商是一位数的笔算是在学生能够比较熟练地利用乘法口诀求商的基础上进行教学的。用整十数除是两位数除法笔算的基础,掌握除数是整十数除法的试商方法是学生学好除数是两位数除法的关键。下面以大宁国际小学宋俊玉老师的一堂《整十数除两、三位数》为案例进行分析。一、教学片段[片段1](出示主题图)小羊和小猪称体重的情境图。师:农场里的小动物要举行一场举重
In addition to the whole number of two or three digits, the quotient is a one-digit number, which is calculated on the basis that the student can skillfully use multiplication formulas to solve the problem. Dividing the whole number by ten is the basis of the two-digit division method. It is the key to learning that the divisor is a two-digit division method. The following to Daning International Primary School Song Junyu a “whole number except two and three digits” as a case analysis. First, the teaching fragment [Fragment 1] (to produce thematic map) lambs and pigs weighing the weight of the situation map. Teacher: Small animals on the farm to hold a weightlifting