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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;,认识时间认识时间,12,1,2,3,4,5,6,7,8,9,10,11,3,时,300,复习,1212345678910113时 300复习,1,上课.,1,1,2,3,4,5,7,6,8,11,12,10,9,123457681112109,1,2,3,4,5,7,6,8,11,12,10,9,12,12345768111210912,1,2,3,4,5,7,6,8,11,12,10,9,(,),(,),5,10,15,123457681112109( )(,1,2,3,4,5,7,6,8,11,12,10,9,5,10,25,30,20,15,60,35,40,45,50,55,123457681112109510253020156035,1,2,3,4,5,7,6,8,11,12,10,9,12,60,5,12345768111210912605,1,2,3,4,5,7,6,8,11,12,10,9,1,时,=60,分,1234576811121091时=60分,1,2,3,4,5,7,6,8,11,12,10,9,5,1234576811121095,1,2,3,4,5,7,6,8,11,12,10,9,5,10,15,20,25,30,35,40,45,50,55,123457681112109510152025303540,11,12,10,1,3,4,5,6,9,8,7,2,从四时开始数.,11121013456987 2,11,12,10,1,3,4,5,6,9,8,7,2,从四时开始数.,4时,5,分,4,:05,11121013456987 2,11,12,10,1,3,4,5,6,9,8,7,2,从四时开始数.,4时30分或4时半,4,:,30,11121013456987 2,11,12,10,1,3,4,5,6,9,8,7,2,从四时开始数.,4时4,5,分,4,:,4,5,11121013456987 2,=,分针走一圈,时针走一个大格.,1,时=,60,分,=分针走一圈,时针走一个大格.,855,855,715,715,120,120,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,分针正好走,走大格是,时.,分,,圈,,分.,是,分.,12,60,1,1,5,1,60,填一填钟面上有个大格,个小格.时针走个大格是分针走个,9,时,30,分,9,:,30,6,时,40,分,6,:,40,8,时,35,分,8,:,35,9时30分9:306时40分6:408时35分8:35,3,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,( ),( ),( ),3,一分钟有多长,一分钟有多长,你在一分钟的时间内,能做些什么?,你在一分钟的时间内能做些什么?,一分钟可以做很多事,(,1,)汽车厂一分钟可以生产一辆汽车,(,2,)中央电视台播音员一分钟可以播,80,个字,(,3,)银行点钞机一分钟可以点,1500,张人民币,一分钟可以做很多事(1)汽车厂一分钟可以生产一辆汽车,一寸光阴一寸金,,寸金难买寸光阴.,一寸光阴一寸金,,作业,1,、课本,91,页做一做读出时间,2,、把做一做的各个时间自己动手拨一拨,作业,谢 谢 指 导.,谢 谢 指 导.,
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