我觉得对小学生进行长(正)方形面积(五年制数学第六册第四单元)教学时,借助于直观教具,采用“运动”的观点,适当渗透一点“变化”的数学思想是必要的,也是可行的。 I think it is necessary to properly penetrate the mathematical idea of ​​“change” by means of visual aids and the concept of “movement” when it comes to teaching primary school pupils in the area of ​​a square (the fourth unit of a five-year math sixth volume) , Is also feasible.