《认识时间》.pptx

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,*,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,*,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,*,认识时间,认识时间,教学任务：,1、认识时和分，知道1时=60分 2、认识时,间，会用几时几分表示时间；,1/28,12,1,2,3,4,5,6,7,8,9,10,11,3,时,300,复习,2/28,1,上课。,3/28,钟面上,一共有（,）大格,1,大格有（,）小格,一共有（,）小格,1,2,3,4,5,7,6,8,11,12,10,9,4/28,钟面上,一共有（,）大格,1,大格有（,）小格,一共有（,）小格,1,2,3,4,5,7,6,8,11,12,10,9,12,5/28,1,2,3,4,5,7,6,8,11,12,10,9,(,),(,),5,10,15,6/28,1,2,3,4,5,7,6,8,11,12,10,9,5,10,25,30,20,15,60,35,40,45,50,55,7/28,钟面上,一共有（,）大格,1,大格有（,）小格,一共有（,）小格,1,2,3,4,5,7,6,8,11,12,10,9,12,60,5,8/28,1,2,3,4,5,7,6,8,11,12,10,9,1,时,=60,分,9/28,1,2,3,4,5,7,6,8,11,12,10,9,5,10/28,1,2,3,4,5,7,6,8,11,12,10,9,5,10,15,20,25,30,35,40,45,50,55,11/28,11,12,10,1,3,4,5,6,9,8,7,2,从四时开始数。,12/28,11,12,10,1,3,4,5,6,9,8,7,2,从四时开始数。,4时,5,分,4,:05,13/28,11,12,10,1,3,4,5,6,9,8,7,2,从四时开始数。,4时30分或4时半,4,:,30,14/28,11,12,10,1,3,4,5,6,9,8,7,2,从四时开始数。,4时4,5,分,4,:,4,5,15/28,=,分针走一圈，时针走一个大格。,1,时=,60,分,16/28,855,17/28,715,18/28,120,19/28,填一填,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，分针恰好走,走大格是,时。,分，,圈，,分。,是,分。,12,60,1,1,5,1,60,20/28,9,时,30,分,9,：,30,6,时,40,分,6,：,40,8,时,35,分,8,：,35,21/28,3,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,(),(),(),22/28,一分钟有多长,23/28,你在一分钟的时间内,能做些什么？,24/28,一分钟能够做很多事,（,1,）汽车厂一分钟能够生产一辆汽车,（,2,）中央电视台播音员一分钟能够播,80,个字,（,3,）银行点钞机一分钟能够点,1500,张人民币,25/28,一寸光阴一寸金，,寸金难买寸光阴。,26/28,作业,1、书本91页做一做读出时间,2、把做一做各个时间自己动手拨一拨,27/28,谢 谢 指 导,28/28,