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人教新课标一年级数学下册,认识时间,实验小学 韩爱明,猜猜这是什么声音?,1,2,3,4,5,7,6,8,11,12,10,9,5,10,25,30,20,15,60,35,40,45,50,55,钟面上一共有60个小格。,1,2,3,4,5,7,6,8,11,12,10,9,5,10,25,30,20,15,60,35,40,45,50,55,(分针),(时针),7时,7:00,复习整时,7时30分,7:30,复习半时,1,2,3,4,5,7,6,8,11,12,10,9,( ),( ),5,10,15,1,2,3,4,5,7,6,8,11,12,10,9,5,10,25,30,20,15,60,35,40,45,50,55,5时10分,5:10,考考你,相信你一定行!,3:10,7:15,1:20,2:40,10:45,5:25,6:50,8:55,9时30分,9:30,6时40分,6:40,8时35分,8:35,12,1,2,3,4,5,6,7,8,9,10,11,演示,时针走一大格 分针走一圈,时,=,60分,时针与分针的关系,分针走一圈,时针走一个大格。 1时 60分,=,855,715,1045,525,120,世界上最宝贵的是时间,同学们一定要做一个珍惜时间的好学生!,下,课,