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第二章是在十年制高中数学课本第二册第五章“空间图形”有关内容的基础上编写的,主要研究几种常见的多面体和旋转体。本章分三大节:“多面体”、“旋转体”、“多面体和旋转体的体积”。授课时数为29课时。通过本章教学,使学生掌握一些最常见的柱、锥、台、球、球缺的概念、性质和画法,掌握它们的表面积和体积公式的推导方法,并能运用这些知识解决有关的问题;在教学过程中,进一步发展学生的空间想象能力、逻辑思维能力和计算能力。这次编写,对十年制课本这一部分的基本内容和体系都未作大的改动,只是根据重点中学教学计划和老师们几年来在教学过程中提出的意见和建议,在内容上作了适当的充实,又增加了“拟柱体”作为选学内容,在讲法和叙述上作了一些改进,并对习题作了适当调整。
The second chapter is written on the basis of the related contents of the fifth chapter of the 10-year high school mathematics textbook Volume 5 “Spatial graphics”. It mainly studies several common polyhedrons and rotating bodies. This chapter is divided into three major sections: “Polyhedron”, “Rotary Body”, “Polyhedron and Volume of Rotary Body”. The number of hours taught is 29 hours. Through the teaching of this chapter, students can master some of the most common concepts, properties and drawing methods of columns, cones, tables, spheres, and spheres, and master their surface area and volume formulas. They can also use this knowledge to solve problems. In the teaching process, students’ spatial imagination ability, logical thinking ability and calculation ability are further developed. In this writing, the basic content and system of this part of the 10-year textbook have not been greatly changed. Only according to the opinions and suggestions put forward by teachers in the teaching process of key middle schools and teachers for several years, the content has been properly The enrichment has added “quasi-column” as the content of the study. Some improvements have been made in lecturing and narrative and adjustments have been made to the exercises.