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小学数学教学大纲(试行草案)中提出,要使学生“初步了解现代数学中的某些最简单的思想。”新的小学数学课本体现了这一精神,在识数和计算中,重点渗
The primary school mathematics syllabus (draft) proposes that students should “understand some of the simplest ideas in modern mathematics.” The new primary school mathematics textbook embodies this spirit. In numeracy and calculations, the key