我要给大家透露一个秘密。我觉得在今天的数学课上,刘老师讲错了!今天的数学课研究的是平行四边形的面积,我们已经学习了长方形面积的求解方法,长方形的面积=长×宽。现在,我们可以通过平行四边形变形,将框架一拉,把平行四边形变成长方形,再拉,又变回平行四边形。于是,大家都觉得,平行四边形的面积应该和长方形一样,等于两条邻边相乘的积。刘老师让我们大胆发表自己的想法,果真有不少同学说平行四 I want to give you a secret. I think that in today’s math class, Teacher Liu is wrong! Today’s math class is about the area of ​​a parallelogram. We have learned how to solve a rectangular area. The area of ​​a rectangle = length x width. Now, we can distort the parallelogram, pull the frame one, turn the parallelogram into a rectangle, and then pull it back into a parallelogram. As a result, we all feel that the area of ​​the parallelogram should be the same as the rectangle, equal to the product of the multiplication of two adjacent edges. Liu let us boldly publish their own ideas, really there are many students that parallel four