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圆柱体是同学们比较熟悉的几何体。你想知道在美国的数学课上教师是如何讲解圆柱体的相关知识的吗?现在就与美国同学一起感受一下吧!Mini Lab Step 1:Trace the top and bottom of the can on grid paper(网格纸).Then cut out the shapes.Step 2:Cut a long rectangle from the grid paper.The width of the rect-angle should be the same as the height of the can.Wrap the rectangle
Cylindrical body is more familiar to students geometry. Do you want to know how teachers are teaching cylinder knowledge in math classes in the US? Now feel with your American classmates! Mini Lab Step 1: Trace the top and bottom of the can on grid paper Paper) .Then cut out the shapes.Step 2: Cut a long rectangle from the grid paper. The width of the rect-angle should be the same as the height of the can .Wrap the rectangle