认识时分..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 时分,乘风二小毕凤波,一匹马,儿,三条腿,，,日夜奔路不怕累；,马蹄哒哒提醒你，,时间一定要珍惜。,12,1,2,3,4,5,6,7,8,9,10,11,5,10,15,20,25,30,35,40,45,50,55,60,12,1,2,3,4,5,6,7,8,9,10,11,12,时针与分针的关系,(1),钟面上有 个大格,个小格,.,(2),时针走,1,大格是 时,.,(3),分针走,1,小格是 分,走,1,大格,是 分,.,(4),时针走,1,大格,分针正好走 圈,.,12,60,1,1,5,1,填一填,1,时,=60,分,12,1,2,3,4,5,6,7,8,9,10,11,1,时,1 00,：,12,1,2,3,4,5,6,7,8,9,10,11,4,时,4 00,：,12,1,2,3,4,5,6,7,8,9,10,11,4,时,30,分,4 30,：,12,1,2,3,4,5,6,7,8,9,10,11,8,时,30,分,8 30,：,12,1,2,3,4,5,6,7,8,9,10,11,10时15分,10 15,：,12,1,2,3,4,5,6,7,8,9,10,11,4时45分,4 45,：,6,时,05,分,6 05,：,12,1,2,3,4,5,6,7,8,9,10,11,12,1,2,3,4,5,6,7,8,9,10,11,8时55分,8 55,：,7:45,9:05,10:25,3:25,0,填空,1时=,1时30分=,1时10分=,80分=,分,分,分,分,时,20,70,60,1,90,思考：几时整分针和时针重合？,12,1,2,3,4,5,6,7,8,9,10,11,思考：几时整分针,和时针组成一条直线？,12,1,2,3,4,5,6,7,8,9,10,11,游戏,这节课你最大的收获是什么？,朝起早,夜眠迟,老易至,惜此时,我们赢了!,再见,