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上海版二期课改新教材《数学》第一册第一章有探究活动———将一个分数拆为几个不同的单位分数之和.下面就单位分数及有关知识作一介绍.1.认识单位分数,了解数学的历史、背景与文化.分子为1的分数叫单位分数,也叫埃及分数.记录埃及分数成果的《莱因德草纸书》(Rhind Papyrus)
The first edition of the first edition of the first edition of the second edition of the Shanghai edition of the textbook “Mathematics” has an inquiry activity—a score is divided into the sum of several different unit scores. The following describes the unit score and related knowledge. Recognize unit scores to understand the history, background, and culture of mathematics. A numerator score of 1 is called a unit score, also known as an Egyptian score. Rhind Papyrus records Egyptian score results.