苏教版二年级认识时分课件.ppt
我有一个好朋友嘀嘀嗒嗒不停走叫我按时学习和休息真是我的好帮手(打一物)谜底:(),谜语,钟表,认识时、分,学习目标1:认识时针,分针。会认整时.钟面上有12个大格,60个小格2:知道时针走一大格是1小时 分针走一小格是1分钟.知道 1时=60分3:感受一分钟有多长,学习目标1:认识时针,分针。会认整时.钟面上有12个大格,60个小格2:知道时针走一大格是1小时 分针走一小格是1分钟.知道 1时=60分3:感受一分钟有多长,分针,时针,我长长的,细细的,大家都叫我分针。,我短短的,粗粗的,大家都叫我时针。,8时,8时写作8:00,分针指着12,时针指着几是几时,1时写作1:00,试一试,6时写作6:00,试一试,9时写作9:00,11时写作11:00,12时写作12:00,这个是几时?,大格,12个,每个大格有()个,5,1,2,3,4,5,10,15,20,25,30,35,40,45,50,55,60,一共有()个小格,60,小格,钟面上有 12个大格 60个小格,时针短粗分针细长,钟面上有 12个大格 60个小格,时针短粗分针细长,时针走了 1 大格,12时,是 1 小时。,4 时,时针,1,2,3,4,5,6,7,8,9,10,11,12,分针走一圈,是 分。,60,分针走1小格,是 1 分。,5分,10分,20分,45分,55分,60分,分针,时针走一大格是1小时分针走一小格是1分,时针走一大格是1小时 分针走一小格是1分,1,2,3,4,5,6,7,8,9,10,11,12,时针走1大格,分针正好走()圈,1时,60分,1,观察,你学到了什么?,钟面上共有()个大格每个大格里面有()个小格 钟面上 共有()个小格分针走1小格是()分钟时针走1大格是()小时,12,5,60,1,1小时60分,1,一分钟有多长?,0:01,0:02,0:03,0:04,0:05,0:06,0:07,0:08,0:09,0:10,0:11,0:12,0:13,0:14,0:15,0:16,0:17,0:18,0:19,0:20,0:21,0:22,0:23,0:24,0:25,0:26,0:27,0:28,0:29,0:30,0:31,0:32,0:33,0:34,0:35,0:36,0:37,0:38,0:39,0:40,0:41,0:42,0:43,0:44,0:45,0:46,0:47,0:48,0:49,0:50,0:51,0:52,0:53,0:54,0:55,0:56,0:57,0:58,0:59,结束,一分钟 你能做什么?,试一试,1分钟能做些什么。,你一分钟能做些什么?,