一位老师在教“可能性”这一课时,要学生抛硬币,并且告诉学生出现国徽面与数字面的机会各占一半。有个学生在课堂内一连抛了10次,出现国徽面有8次,数字面有2次。他就说:“老师,你讲的不对,我已经验证了。”这位老师微笑着说:“你今天回家继续抛,抛几千次,看看结果如何。”这位学生回家后,死劲地抛啊抛啊,一连抛了5000次, When a teacher teaches the “possibility” lesson, students are required to throw a coin and tell the students that the chance of appearing between the national emblem and the digital surface is half. One student threw 10 times in the classroom. There were 8 national emblems and 2 digital figures. He said: “Teacher, you didn’t speak right. I have already verified it.” The teacher said with a smile: “You go home today and continue to throw, throw a few thousand times to see how the result is.” After the student came home , throwing away deadly and throwing 5,000 times.