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片断一:学生自主提出问题师:知道了圆柱体的特点后,你还想知道什么?生:我想知道圆柱体的表面积怎么求。生:我想知道圆柱体的体积、侧面积怎么求。生:我想知道圆柱体的表面展开是什么形状。
Piece one: Students ask questions autonomously Division: Know the characteristics of the cylinder, you still want to know what? Health: I want to know how to find the surface area of the cylinder. Health: I want to know the volume of the cylinder, how to find the side area. Health: I want to know what the shape of the surface of the cylinder is.