数字的发展走过了漫长的路程.早在原始人时代,人们在生产活动中注意到一只羊与许多羊,一头狼与整群狼在数量上的差异,随着时间的推移慢慢的产生了数的概念.最早人们利用自己的十个指头来记数,当指头不敷应用时,人们开始采用“石头记数”、“结绳记数”和“刻痕记数”.然而随着生 The development of numbers has come a long way. As early as in the Primitive Age, people took notice of the quantitative differences between a sheep and many sheep, a wolf and a pack of wolves in their production activities. As time went by, The concept of number came in. Earliest people used their ten fingers to count, and when the finger was not enough, people started to use “stone count”, “knot count”, and “scratch mark Number ”However, with students