在一次教研活动中,我准备教学“十进制计数法”一课。刚开始研究时,觉得它是一节枯燥、乏味的课,后来仔细分析,却发现这节课里蕴涵着丰富的数学文化:有数的起源,有文明古国数字的奇异形态,有阿拉伯数字的发展历史等。于是我 In a teaching and research activities, I am ready to teach “a decimal counting method” a lesson. When I started my research, I thought it was a dull and tedious lesson. After careful analysis, I found out that this lesson contains a rich mathematical culture: its origins include the singular forms of ancient civilizations and the development of Arabic numerals History and so on. So I