This paper expounds the production of the Chinese version of Euclid's Geometry, its basic content structure and important contribution to Mathematics and the human civilized history.

阐述了欧几里德《几何原本》中译本的产生、基本内容结构及其在数字与人类文明史上的重要贡献。

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Is also a necessary preparation for learning advanced mathematics content in the future.

也是以后学习高等数学内容的必要准备。

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Mathematical proposition belong mathematical basic knowledge, which is one of the chief content of mathematics learning.

数学命题属于数学的基础知识范畴，是数学学习的主要内容之一。

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For secondary level there are two exams which certify the completion of first or second level, and assess knowledge on mathematics, social and natural sciences and philosophy (the number and content of subjects varies per level).

UNESCO: Country Profile: Chile

Experts from Creative Associates International, Inc. with technical assistance from researchers of University of Massachusetts (USA) conducted external evaluation in mathematics and reading upon two groups of students through pre and post-test with the same content.

UNESCO: WEF ( Grassroots stories > Haiti