小学数学人教一年级认识时间：认识几时几分.ppt

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,厚坝小学：王师洪,1,2,3,4,5,6,7,8,9,10,11,12,钟面有（）个数字，（）个大格，每大格分（）个小格，钟面上共有（）小格,12,12,5,60,1,2,3,4,5,6,7,8,9,10,11,12,1,2,3,4,5,6,7,8,9,10,11,12,1,小时,时针走一大格，时间经过,1,小时。,1,2,3,4,5,6,7,8,9,10,11,12,分针走一小格，时间经过,1,分钟。,5,分,10,分,20,分,45,分,55,分,60,分,15,分,25,分,30,分,35,分,40,分,50,分,1,2,3,4,5,6,7,8,9,10,11,12,1,2,3,4,5,6,7,8,9,10,11,12,1,时,=60,分,1,2,3,4,5,6,7,8,9,10,11,12,7,时,40,分,7,：,40,8,时,5,分,8:05,12,1,2,3,4,5,6,7,8,9,10,11,12,1,3,2,9,8,7,6,5,4,11,10,6,时,25,分,6,：,25,7,时,45,分,7,：,45,9,时,5,分,9,：,05,10,时,25,分,10,：,25,3,时,25,分,3,：,25,连线,7,：,25,10,：,05,5,：,45,4,：,15,一分钟有多长,银行点钞机一分钟点,1500,张人民币,一分钟可以生产,600,瓶饮料,一分钟能生产,1600,支铅笔,中央电视台播音员,一分钟播,180,个字,下,课,再,见,