认识时间,人教新课标一年级数学下册,教学目标,1.使同学们在已认识整时的基础上认识半时、几时差几分、几时过几分。 2.能正确书写时间。 3.学会节约时间,养成按时作息的良好习惯。,7时,7:00,7时30分,7:30,1,2,3,4,5,6,7,8,9,10,11,12,1,2,3,4,5,7,6,8,11,12,10,9,( ),( ),5,10,15,每一大格中有几个小格?,1,2,3,4,5,7,6,8,11,12,10,9,5,10,25,30,20,15,60,35,40,45,50,55,1,2,3,4,5,7,6,8,11,12,10,9,分针走一小格是1分,走一大格是5分。,时针与分针的关系,分针走一圈,时针走一个大格。 1时 60分,=,9时30分,9:30,6时40分,6:40,8时35分,8:35,考考你,相信你一定行!,3:10,7:15,1:20,2:40,10:45,5:25,6:50,8:55,8:55,再见,