1、认识时间,15 25 53 45 56=,口算练习题,5,55 51 55 52 54,10,15,20,30,25,5,10,10,20,我有一个好朋友， 嘀哒嘀哒不停走， 叫我学习和休息， 真是我的好朋友！,猜谜语,钟表,12时,12时30分,1时,30分也可以说是半小时,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,
2、6,8,11,12,10,9,1,2,3,4,5,7,6,8,11,12,10,9,5,1,2,3,4,5,7,6,8,11,12,10,9,5,10,15,20,25,30,35,40,45,50,55,60,1,2,3,4,5,7,6,8,11,12,10,9,=,分针走一圈，时针走一个大格。,1时=60分,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
3、,4,5,6,9,8,7,2,从四时开始数。,4时45分,4:45,11,12,10,1,3,4,5,6,9,8,7,5,9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。,12,60,1,1,5,1,60,855,715,120,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,( ),( ),( ),1分大约跑200米。,1分大约骑700米。,1分大约游50 米。,一寸光阴一寸金， 寸金难买寸光阴。,谢 谢 指 导,
