苏教版二年级认识时分课件.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,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？,