1_5的认识和加减法《1_5的认识》教学课件新人教版.ppt

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,引入,新授,练习,小结,说一说你看到了什么?数一数,分别有几个?,引入,15的认识,新授,哪些事物可以用2来表示呢?,哪些事物可以用3来表示呢?,哪些事物可以用4来表示呢?,哪些事物可以用5来表示呢?,边摆边数。,1,2,3,4,5,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,比,画,写,看图写数。,( ) ( ) ( ),1,3,5,3前面的数是( ),后面的数是( )。,与2相邻的两个数是( )和( )。,与4相邻的两个数是( )和( )。,2,4,1,3,3,5,填空。,3 4 2 5,看图连数。,看图涂数。,5,3,4,写出 上的数。,1 3,2,3 4,5,3 4,2,1 像铅笔直又长,2 像鸭子水中游,3 像耳朵两道弯,4 像小旗随风飘,5 像钩子挂半空。,小结,

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