论文部分内容阅读
一、在木工厂讲立体几何的开头课“高中立体几何”第一章第三节“平面的基本性质”的三个公理是建立立体几何体系的逻辑基础。它的三个推轮以及平面的其它性质——“平面绕直线旋转”,以及异面直线的概念也都是学习以后各章节的基础。这部分教材原规定4课时讲完的。第一课:平面的基本性质: 公理一:如果一条直线上的两点在一个平面内,那末这直线上所有的点都在这平面内。公理二:如果两个平面有一个公共点,那么它们相交于过这点的一条直线。
First, in the wood factory to begin the three-dimensional geometry of the beginning of the “high school three-dimensional geometry,” the first three chapters “the basic nature of the plane,” the three axioms are the logical basis for the establishment of a three-dimensional geometry system. Its three push wheels and other properties of the plane - the “plane rotates about a straight line”, as well as the concept of a non-planar straight line are also the basis for learning the subsequent chapters. This part of the textbook originally prescribed 4 lessons. Lesson 1: The Basic Nature of the Plane: Axiom 1: If two points on a straight line are in a plane, then all the points in the line are in this plane. Axiom 2: If two planes have a common point, they intersect at a straight line passing through this point.