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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,*,认识几时几分,1,2,3,4,5,7,6,8,11,12,10,9,分针,时针,7,时,7:00,复习,1,2,3,4,5,7,6,8,11,12,10,9,钟面上有,12,个大格,1,2,3,4,5,7,6,8,11,12,10,9,5,一大格有,5,个,小格,1,2,3,4,5,7,6,8,11,12,10,9,5,10,25,30,20,15,60,35,40,45,50,55,钟面上有,60,个小格,1,2,3,4,5,7,6,8,11,12,10,9,12,60,5,1,分,分,分,分,分,分针走一小格是,1,分。,5,分针走一大格是（ ）分。,1,2,3,4,5,8,11,10,9,12,6,7,1,分,分针走,4,个大格是,20,小格，是,20,分,20,分,15,分,10,分,5,分,5,10,15,20,25,30,35,40,45,50,55,60,分针走一圈是（ ）分。,60,12,时,12:00,1,时,1:00,1,时,60,分,=,1,2,3,4,5,7,6,8,11,12,10,9,1,时,=60,分,1,2,3,4,5,8,11,10,9,12,6,7,时针走（ ）大格，分针正好走（ ）圈，也就是（ ）个小格，,1,小时,=,（ ）分,1,1,60,60,分针走一圈，时针走一个大格。,一时=60分,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,看时针,时针走一大格，时间经过,1,时。,看分针,分针走一小格，时间经过,1,分，,分针走一大格，时间经过,5,分，,分针走一圈，时间经过,60,分。,时针分针一起看,分针走了一圈，时针刚好走了,1,大格。,1时=60分,1,2,3,4,5,7,6,8,11,12,10,9,12,到,4,有（ ）小格,20,1,2,3,4,5,7,6,8,11,12,10,9,12,到,9,有（ ）小格,20,45,45,12,：,00,12,：,30,1,：,00,1,时,60,分,30,分也可以说成半小时。,11,12,10,1,3,4,5,6,9,8,7,5,4,时,5,分,4:05,从四时开始数。,1,2,3,4,5,7,6,8,11,12,10,9,15,5,10,4时15分,11,12,10,1,2,3,4,5,6,9,8,7,4,时,30,分,4:30,30,4,时半,从四时开始数。,11,12,10,1,2,3,4,5,6,9,8,7,4,时,45,分,4:45,4,5,从四时开始数。,4,时,55,分,4,:,55,分针,指着,（ ），就是（ ）分。,时针,指过,（ ），就是（ ）时,多,。,合起来就是（ ）时（ ）分。,11,55,4,4,4,55,4,时,45,分,4:45,5,时,5:00,4,时,55,分,4:55,1,2,3,4,5,7,6,8,11,12,10,9,1,2,3,4,5,7,6,8,11,12,10,9,比较这两个钟面，有什么不同？,1,2,3,4,5,7,6,8,11,12,10,9,时针,走过数字,8,8,时,分针,走了,20,小格,20,分,8,时,20,分,8,:,20,分针,指着,（ ），就是（ ）分。,时针,指过,（ ），就是（ ）时,多,。,合起来就是（ ）时（ ）分。,4,20,8,8,8,20,1,2,3,4,5,7,6,8,11,12,10,9,10,时,35,分,10:35,1,2,3,4,5,6,8,11,12,10,9,7,时针走过数字几,分针走过几个小格,1,2,3,4,5,7,6,8,11,12,10,9,7,时,25,分,7:25,8,时,5,分,8:05,3,时,5,分,3:05,3,时,20,分,3:20,3,时,45,分,3:45,4,时,4:00,3,时,55,分,3:55,我们看,几时几分,，要先看,时针,，时针,指到几或走过几,，就是,几时,。再看分针从,12,起,走了几个小格,就是,几分,，合起来就是,几时几分,。,当看到分针走的小格,不满,10,小格,时，写的时候要在小圆点后面写上,“,0”,。,小结：,时针过了几就是几时多多了多少分仔细看分针,（,1,）时针从,8,走到,9,，经过,1,时。 （ ）,（,5,）在钟面上分针走,1,圈，时针走,1,个小格。,（ ）,（,4,）在钟面上分针走,1,圈，时针,走,1,个大格，是,1,小时。 （ ）,（,3,）分针从,8,走到,9,，经过,5,时。 （ ）,（,2,）分针从,8,走到,9,，经过,1,分。 （ ）,正确的画,“,”,，错误的画,“,”,。,11,12,10,1,2,3,4,5,6,9,8,7,（ ）时（ ）分,9,5,_:_,9,05,11,12,10,1,2,3,4,5,6,9,8,7,（ ）时（ ）分,6,25,_:_,6,25,1:25,1时25分,8:05,8时5分,6:50,6时50分,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,做一做。,做一做。,连一连,1:10,4:20,5:35,11:15,做一做,7:15,7:30,7:40,8:00,1:20,10:45,9:55,6:05,9,时,25,分,9,：,25,9,时,30,分（,9,时半）,9,：,30,画一画,5,时,30,分（,5,时半）,5,：,30,画一画,11,时,55,分,11,：,55,画一画,一寸光阴一寸金，,寸金难买寸光阴。,谢 谢 指 导,
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