摘要
本文系统地阐述了初等几何中欧扭(Euler)定理的思想来源,证明方法以及由 Euler 示性数对曲面进行分类等问题,以期对中学数学教师教学借鉴.
This paper systematically expounds the ideological origin onEuler theorem in elementary geometry,method of proof and classification fromEuler characteristic number towards surface etc.so that these problems can beused for reference of the teachers'mathematics teaching in school.
出处
《曲阜师范大学学报（自然科学版）》
CAS
1992年第1期78-83,共6页
Journal of Qufu Normal University(Natural Science)
关键词
初等几何
欧拉定理
欧拉示性数
教学
中学
elementary geometry
Euler theorem
Euler characteristic number
teaching
