2019二年级语文上册课文24曹冲称象课件新人教版.ppt

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曹 冲 称 象,co chng yun zh曹操 称一称 官员 柱子 y ln zhng ling gn chng 议论 重 量 一杆 大秤 kn do g xin zh 砍 倒 割 线 止,官员们想出哪几种称象办法? 用横线在文中画出来。,曹操微笑着点点头。,小组讨论、交流,1.默读课文,把曹冲称象的办法用“”画出来。2.想一想:称象分为哪几步?3.说一说:称象的过程。,把大象赶到一艘大船上,看船身下沉多少,就沿着水面,在船舷上画一条线。再把大象赶上岸,往船上装石头,装到船下沉到画线的地方为止。然后称一称船上的石头。石头有多重,大象就有多重。,小练习,给下面的内容排序 ( )赶象上船 ( )称石头的重量 ( )在船舷上做记号 ( )把大象赶上岸,装石头上船,读一读,比一比,1.曹操的儿子曹冲7岁。曹操的儿子曹冲才7岁。 2.大象有多重?大象到底有多重?,再见,

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