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1、第七单元 认识时间,人教版小学数学二年级上册,安家渡小学,安记玲,3时,300,复习,1,上课。,1,2,3,4,5,7,6,8,11,12,10,9,12,1,2,3,4,5,7,6,8,11,12,10,9,(),(),5,10,15,1,2,3,4,5,7,6,8,11,12,10,9,5,10,25,30,20,15,60,35,40,45,50,55,12,60,5,1,2,3,4,5,7,6,8,11,12,10,9,1时=60分,1,2,3,4,5,7,6,8,11,12,10,9,1,2,3,4,5,7,6,8,11,12,10,9,5,1,2,3,4,5,7,6,8,11,1
2、2,10,9,5,10,15,20,25,30,35,40,45,50,55,11,12,10,1,3,4,5,6,9,8,7,5,9时 5分,9:05,11,12,10,1,2,3,4,5,6,9,8,7,5,10,15,20,25,6时25分,6:25,9时15分9:15,11时55分11:55,认一认,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,钟面上有,个大格,,个小格。,时针走个大格是,分针走个小格是,时针走个大格,分针正好走,走大格是,时。,分,,圈,,分
3、。,是,分。,12,60,1,1,5,1,60,=,分针走一圈,时针走一个大格。1时=60分,一分钟有多长,你在一分钟的时间内,能做些什么?,855,715,120,一寸光阴一寸金,寸金难买寸光阴。,11,12,10,1,3,4,5,6,9,8,7,2,从四时开始数。,11,12,10,1,3,4,5,6,9,8,7,2,从四时开始数。,4时 5分,4:05,11,12,10,1,3,4,5,6,9,8,7,2,从四时开始数。,4时30分或4时半,4:30,11,12,10,1,3,4,5,6,9,8,7,2,从四时开始数。,4时45分,4:45,3,明明9:00做完作业后去踢球,10:30还要去看木偶剧,他可能在哪个时间去踢球?,A、7:45,B、9:15,C、10:50,(),(),(),谢 谢,