一、内容与内容解析“算法案例”是继“程序框图”和“算法语句”之后所学习的内容.这节课选自《普通高中课程标准实验教科书·数学(必修3)》“算法”一章的第4节,内容是探究古代算法案例——“辗转相除法”的算法设计思想.教学围绕问题“如何求两个正整数a,b(a>b)的最大公约数”展开.欧几里得辗转相除法求两个正整 First, the content and content analysis “algorithm case ” is following “block diagram ” and “algorithm statement ” after learning content.This class is from “ordinary high school curriculum standard experimental textbook mathematics (compulsory 3 Part 4 of the chapter ”Algorithm“, the content is to explore the algorithm design idea of ​​the ancient algorithm case - ”Tumbling Dividing Method “ teaching around the problem ”How to find two positive integers a, b (a > b) the greatest common divisor "Euclid removed the division two positive integer