人教版小学数学二年级上册《认识时间》PPT课件.ppt

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,1,2,3,4,5,7,6,8,11,12,10,9,1,2,3,4,5,7,6,8,11,12,10,9,5,1,2,3,4,5,7,6,8,11,12,10,9,5,10,15,20,25,30,35,40,45,50,55,11,12,10,1,3,4,5,6,9,8,7,5,9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。,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,