时间与数学课件(北师大版三年级数学上册课件).ppt

时间与数学（一）,飞飞的父亲是一名火车司机,每工作3天后休息1 天。飞飞的母亲是一名飞机乘务员，每工作 1天后休息1天。,请用“”标出飞飞的休息日？,飞飞的父亲是一名火车司机,每工作3天后休息1 天。飞飞的母亲是一名飞机乘务员，每工作 1天后休息1天。,请分别写出他们9月份全部的休息日。,父亲的休息日,母亲的休息日,飞飞的休息日,4,8,12,16,20,24,28,2,4,6,8,10,14,12,16,18,20,22,24,26,28,30,3,4,10,11,17,18,24,25,父母共同的休息日,父子共同的休息日,母子共同的休息日,4,8,12,16,20,24,28,4,24,4,10,18,24,全家共同的休息日,4,24,1,7,13,19,25,31,37,43,49,下一步父子能同时踏的是哪一阶?,1路车发车时间：,2路车发车时间：,7:00,7:03,7:06,7:09,7:12,7:15,7:18,7:21,7:24,7:27,7:30,7:33,7:36,7:39,7:42,7:45,7:48,7:51,7:54,7:57,8:00,8:03,7:00,7:05,7:10,7:15,7:20,7:25,7:30,7:35,7:40,7:45,7:50,7:55,8:00,8:05,8:10,8:15,8:20,8:25,8:30,8:35,8:40,8:45,