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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,*,中国第一颗探月卫星嫦娥,1,号于,2007,年,10,月,24,日,18,时,5,分,4,秒,成功发射。,年,月,日,：,执,教,者,陈淑群,西师大版小学数学三年级上册,任选一个年份，把各月的天数填入下表。,你,发现了什么？,月份,1,2,3,4,5,6,7,8,9,10,11,12,年,年,年,年,填一填,一年有几个月？,哪几个月有,31,天？,哪几个月有,30,天？,二月有多少天？,议一议：,年,月,日,大月：,二月,28,天,29,天,平 年,闰 年,365,天,366,天,1,、,3,、,5,、,7,、,8,、,10,、,12,（每个月有,31,天）,4,、,6,、,9,、,11,（每个月有,30,天）,小月：,年月,1,2,3,4,5,6,7,8,9,10,11,12,2006,31,28,31,30,31,30,31,31,30,31,30,31,2007,31,28,31,30,31,30,31,31,30,31,30,31,2008,31,29,31,30,31,30,31,31,30,31,30,31,2009,31,28,31,30,31,30,31,31,30,31,30,31,2010,31,28,31,30,31,30,31,31,30,31,30,31,2011,31,28,31,30,31,30,31,31,30,31,30,31,2012,31,29,31,30,31,30,31,31,30,31,30,31,2013,31,28,31,30,31,30,31,31,30,31,30,31,2014,31,28,31,30,31,30,31,31,30,31,30,31,1,31,31,31,31,31,31,31,31,31,5,31,31,31,31,31,31,31,31,31,3,31,31,31,31,31,31,31,31,31,12,31,31,31,31,31,31,31,31,31,10,31,31,31,31,31,31,31,31,31,8,31,31,31,31,31,31,31,31,31,7,31,31,31,31,31,31,31,31,31,4,30,30,30,30,30,30,30,30,30,11,30,30,30,30,30,30,30,30,30,9,30,30,30,30,30,30,30,30,30,6,30,30,30,30,30,30,30,30,30,2,28,28,29,28,28,28,29,28,28,1,3,5,7,8,10,12,2,4,6,9,11,左拳记忆法,七个大月心中装，七前单数七后双，,二月是个特殊月，,其他几个是小月。,记一记,：,年月日歌诀,找一找,：（,比一比谁找得快,）,1.,今年的儿童节是星期几？,2.,教师节和国庆节各是星期几？,说一说：,1.,你能说出哪些重大的节日？,2.,你的生日是几月几日？,3.,你父母的生日是几月几日？,比一比,：（,手势判断,）,(1),每年都是,365,天。 （,）,(2),一年中有,7,个大月，,4,个小月。,( ),(3),小华说：,“,我爸爸,4,月,31,日,才从北京开会回来。,”,（,）,我的生日是,国庆节的第二天。,吴卓翰,的生日是,10,月,2,日,我的生日是最后一个,大月的第六日。,徐廷宇,的生日是,12,月,6,日,我的生日比徐廷宇晚,12,天,.,谭雅馨,的生日是,12,月,18,日,我下周星期一过生日。,陈老师的生日是,12,月,1,日,猜一猜,我的生日是一年中天数最少的月份的第,4,天。,陈韵西的生日是,2,月,4,日,我的生日比陈韵西晚两天。,阳雨梦的生日是,2,月,6,日,我是连续两个大月中后一,个,大月的第,21,日,.,刘欣语的生日是,8,月,21,日,我是一年中第二个大月的第,18,日,王悦鸿的生日是,3,月,18,日,想一想,：（拓展）,1.,小红在外婆家连续住了,62,天，正好是两个月，你知道小红是哪两个月在外婆家的吗？,2.,小丽在奶奶家连续住了两个月，她,可能,在奶奶家住了多少天？,最长又最短，,最多又最少，,最慢又最快，,最便宜又最宝贵的是什么？,（时间）,猜谜语：,再见,再见,
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