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几何是数学中最早建立演绎公理化体系的分支,也是最早的数学教育内容,几何学是研究现实世界中物体和几何图形的形状、大小与位置关系及其变换的数学学科,是人们创新精神所需的基本元素,是更好地认识和描述生活空间并进行交流的重要工具。几何图形是整个数学体系中一个基本而又重要的概念,在数学教育发展的各个历史时段都有举足轻重的地位。而圆是几何图形中最美的图形。圆是在学习了直线图形的有关性质和判定的基础上来探索的,圆既是中心对称图形又是轴对称
Geometry is the earliest branch of deductive axiomatization in mathematics. It is also the earliest mathematics education. Geometry is a mathematical discipline that studies the shape, size and position of objects and geometries in the real world and its transformation. The basic elements of what is needed are important tools for better understanding and describing living spaces and for communicating. Geometry is a basic and important concept in the whole mathematics system, and plays a decisive role in the historical development of mathematics education. The circle is the most beautiful figure in the geometry. The circle is explored on the basis of the study of the relevant properties and judgments of a line graph, which is both centrosymmetric and axisymmetric