学生系统掌握圆柱和圆锥的基础知识后,教师应进一步让学生了解圆柱和圆锥的相互关系,从而发展学生空间观念,增强空间想象力和逻辑思维能力。一、等底等高的圆柱和圆锥教学圆锥体的体积时,用等底等高的圆柱体和圆锥体的容器作教具进行演示,使学生明确圆锥体的体积等于和它等底等高的圆柱体体积的三分之一。 After students master the basics of cylinders and cones, teachers should further understand the relationship between cylinders and cones so as to develop students' space concepts and enhance their spatial imagination and logical thinking ability. First, the end of the contour cylinder and conical teaching cone volume, with the end of the contour cylinder and cone container as a teaching aids to demonstrate, so that students clear the cone volume equal to it and so on One third of the cylinder's volume.