论文部分内容阅读
【案例背景】《圆锥的体积》是北师大版六年级下册第一单元《圆柱与圆锥》的最后一个知识点。圆锥是一种含有曲面的几何体,给体积的认识和计算增加了难度。教材将本课学习安排在圆柱的认识和圆柱的表面积、体积之后。让学生有序地经历了探究物体与图形的形状、大小、位置关系的变换过程,掌握圆锥体积的计算方法和公式的推导过程,建立初步的空间概念,培养形象思维,为后续学习打下坚实的基础,提高学生的知识迁移能力。
Case Background “The volume of the cone” is the last knowledge point of the first unit “cylinder and cone” of the sixth grade of Beijing Normal University version. A cone is a surface-containing geometry that adds complexity to the understanding and calculation of volume. Teaching materials will be arranged in this lesson cylinder learning and surface area of the cylinder, the volume behind. Let the students go through an orderly process of exploring the transformation of the shape, size and position of objects and figures, mastering the calculation methods of conic volumes and the derivation of formulas, establishing preliminary concepts of space, cultivating the thinking of images, and laying a solid foundation for follow-up study Basis, improve students’ knowledge transfer ability.