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2021/6/7,1,角的初步认识,徐州市星源小学 历洪星,2021/6/7,2,这些图形都是角,2021/6/7,3,边,顶点,边,角的组成,2021/6/7,4,2021/6/7,5,2021/6/7,6,角的画法,2021/6/7,7,小小角,真简单一个顶点两条边画角时要牢记先画顶点再画边,2021/6/7,8,动手创造角,2021/6/7,9,1.下面哪些是角,哪些不是?,2021/6/7,10,2.下面的图形各有几个角?,( )个 ( ) 个 ( )个 ( )个,1,3,2,5,2021/6/7,11,最小,最大,2021/6/7,12,2021/6/7,13,2021/6/7,14,2021/6/7,15,2021/6/7,16,部分资料从网络收集整理而来,供大家参考,感谢您的关注!,