教学内容与教材简析 本节课教学内容为圆柱体积计算公式的推导和应用(教材第43-44页,例4,例5),第1课时,新授课。 圆柱的体积是在学生已经学习了长方体的体积、圆的面积,认识了圆柱并会计算圆柱的表面积的基础上教学的。圆柱的体积计算应用广泛,又是圆锥体积计算的基础,并且立体图形的截拼是首次见面,把圆柱 Teaching content and textbook analysis This class teaching content is the derivation and application of cylindrical volume calculation formula (textbook 43-44, Example 4, Example 5), the first class, the new lectures. The cylinder's volume is taught on the basis of the cuboid's volume, the area of ​​the circle, the cylinder's knowledge, and the surface area of ​​the cylinder. Cylindrical volume calculation is widely used, but also the basis of the cone volume calculation, and the three-dimensional figure is the first time to meet the cut, the cylinder