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角的初步认识

角的初步认识. 在这幅图上你们看到了什么 ?. 在这幅图里你们都看到了什么 ?. 边. 顶点. 边 . 角由两部分组成:. 一个顶点 ,  两条边. 观察下列图片 , 有什么特点 ?. 在这幅图你们看到了什么?在钟里面又观察到了什么?. 观察这幅图你看到了什么 ?. 在这几幅图里哪些图是有角的 , 哪些图没有角. 二. 一. 想一想. 三. 四. 再见!.

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角的初步认识

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