“整数乘法”在小学数学计算教学中有着举足轻重的地位,它是学生计算能力结构体系的重要组成部分,是小数乘除法学习的直接基础。这部分内容教学时间长,以苏教版教材编排为例,历时三个学年,分为四个阶段,分别是二年级上学期的表内乘法、三年级上学期的两三位数乘一位数、三年级下学期的两位数乘两位数和四年级下学期的三位数乘两位数。四个阶段各有不同的侧重点,但“会算”往往都是我们的直接目标。然而,计算教学 “Integer Multiplication ” plays a decisive role in elementary mathematics teaching. It is an important part of students’ computing ability structure system and is the direct basis of learning by fractional multiplication and division. This part of the content of teaching a long time to Supian version textbook arrangement, for example, lasted three school years, is divided into four stages, respectively, the second-year semester table multiplication, three or three last semester by one or three digits Number, third grade Second semester double-digit and third-grade fourth semester triple digits by double digits. Each of the four stages has a different emphasis, but often “” is our immediate goal. However, calculating teaching