一、课前思考关于圆柱的体积,不同的版本教材编排都有所不同。人教版教材的编排是首先复习,让学生回忆什么叫物体的体积,你会计算下面哪些图形的体积?继而通过提示性的问题“能将圆柱转化成一种学过的图形,计算出它的体积?”北师大版的教材编排则先呈现问题“这么粗的柱子,它的体积是多少呢?”、“一个杯子能装 First, thinking before class On the cylinder’s volume, different versions of textbook layout are different. People’s Education Edition textbook arrangement is the first review, so that students recall what is the size of the object, which of the following graphics you will calculate the volume? And then through the suggestive question ”can cylinder into a learned graphics, calculate it The volume? “” Beijing Normal University version of the textbook layout is the first to show problems “so thick column, its volume is how much?”, "A cup can hold