认识时间二年级数学上册谭家湾镇龙泉教学点江庆云小小圆形运动场三个选手比赛忙跑得路程没长短用的时间不一样分针分针时针时针34567891011122钟面上有()个大格12()1234()每个大格里有()个小格5每个大格里有(5)个小格一共有(60)个小格111210123456987钟面上有12个大格有60个小格111210123456987时针走1大格是1小时1112101234569871分针走1小格是1分。你能说出钟面上的时间吗?77:00()时分针时针1233:009:006:0012:007:30()时30分7()时10分88:101212345678910111分钟有多长呢?1112101234569875分针走1大格是5分。111210123456987510111210123456987510155101112101234569875101520111210123456987510152025111210123456987510152025301112101234569875101520253035111210123456987510152025303540111210123456987510152025303540451112101234569875101520253035404550111210123456987510152025303540455055111210123456987510152025303540455055601时=60分分针走一圈,时针走一个大格。1时60分()时50分88:501112101234569874:001112101234569874:多11121012345698754:5010302025154时50分小结:小结:•时针指在两数间,要按前数来记时,一大格时针指在两数间,要按前数来记时,一大格是是11时。时。•分针小弟跑的快,一小格是分针小弟跑的快,一小格是11分,一大格是分,一大格是55分,分,6060分跑一圈。分跑一圈。认识时间请珍惜每一分,让生命更有价值!1112101234569871:001112101234569871:多11121012345698712:001112101234569871:多1112101234569871:多1112101234569872:001112101234569874:多1112101234569875:001112101234569879:001112101234569879:多11121012345698711121012345698711:多11121012345698712:0011121012345698711121012345698711121012345698754时4:055分11121012345698754:15101511121012345698754:4510302025153540451112101234569874:553035404550551112101234569875:00304515715∶1∶205∶258∶4511∶507∶307∶408∶001∶2010∶459∶556∶059∶306∶409∶35