π及其“谜”

π and the Secret of It

圆周率π是一个非常重要的数值,是计算圆的面积等必不可少的常量,所以,在教学中让学生了解π的来历以及在这方面作出贡献的数学家,可增加学生对数学学习的兴趣和积极性.

Circumferential ratio rr is an important numerical value and necessary constant to calculate the area of a circle. Therefore, in the learning process letting the students know about the origin of π and mathematicians who make great contribution in this field can improve the students＇enthusiasm and interest of learning mathematics,