一、利用数学阅读材料拓展学习视野的教学意义1.知数学的发展过程。(1)顺利发展过程:《神奇的π》用接力赛的形式介绍了π的发展过程:古埃及人→阿基米德→张衡→刘徽→卢道夫→瓦里斯→莱布尼兹→詹克斯→现代超级计算机→……现在π的近似值,已从3.16049到小数点后的12411亿位, First, the use of mathematical reading materials to expand the learning horizons of teaching 1. Knowledge of the development process. (1) The smooth development process: The “magic π” introduces the development of π in the form of relay race: Ancient Egyptians → Archimedes → Zhang Heng → Liu Hui → Rudolf → Varis → Leibniz → Zhan Now → The current supercomputer → ... Now the approximate value of π has changed from 3.16049 to 1,241.1 billion digits after the decimal point,