《认识时间》教学课件 (4).ppt
认识时间,认识时间,小小骏马不停蹄,日日夜夜不休息,蹄声哒哒似战鼓,提醒人们争朝夕。,猜猜看,谜底,对了吗?,小小骏马不停蹄,日日夜夜不休息,蹄声哒哒似战鼓,提醒人们争朝夕。,钟面上都有什么?,D,K,X,S,F,M,大格,刻度,小格,时针,分针,秒针,说出钟面所表示的时刻。,100,400,600,900,1时,9时,6时,4时,例1:钟表上现在是什么时间?,时针、分针的关系,10,20,25,30,35,40,45,50,55,60,时针、分针的关系,1时60分,12:00,12:30,1:00,例2:认识几时几分,4:00,4:05,几时几分,4:10,4:15,4:20,4:25,4:30,4:35,4:40,4:45,几时几分,4:05,4:30,4:45,时针走过数字4,分针从12起走了多少个小格,就是4时多少分。,做一做,7:30,7:40,8:00,10:45,9:55,6:05,1:20,