人教版小学数学《年月日》课件.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,*,人教版小学数学三年级下册,1949,年,10,月,1,日,中华人民共和国成立,6,月,1,日,国际儿童节,2003,年,10,月,15,日，,“,神舟,5,号,”,飞船发射成功。,2008,年,8,月,8,日北京奥运会,开幕式,2010,年,5,月,1,日到,10,月,31,日期间，,世博会在中国上海举行。,1,月,日,一,二,三,四,五,六,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,315,月,日,一,二,三,四,五,六,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,9,月,日,一,二,三,四,五,六,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,2,月,日,一,二,三,四,五,六,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,6,月,日一,二,三,四,五,六,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,10,月,日,一,二,三,四,五,六,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,3,月,日,一,二,三,四,五,六,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,7月,日,一,二,三,四,五,六,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,11,月,日,一,二,三,四,五,六,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,4,月,日,一,二,三,四,五,六,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,8,月,日,一,二,三,四,五,六,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,12,月,日,一,二,三,四,五,六,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,2010,年年历,你能在年历上圈出你知道的有意义的日子吗？,元旦,植树节,劳动节,建军节,国庆节,仔细观察你的年历，在小组内说说你发现了哪些有关年月日的知识？,1,月,日,一,二,三,四,五六,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,5,月,日,一,二,三,四,五,六,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,9,月,日,一,二,三,四,五,六,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,2,月,日,一,二,三,四,五,六,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,6,月,日,一,二,三,四,五,六,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,10,月,日,一,二,三,四,五,六,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,3,月,日,一,二,三,四,五,六1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,7,月,日,一,二,三,四,五,六,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,11,月,日,一,二,三,四,五,六,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,4,月,日,一,二,三,四五,六,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,8,月,日,一,二,三,四,五,六,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,12,月,日,一,二,三,四,五,六,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,2010,年年历,小组合作，仔细观察每个人的年历的每个月有多少天，填在下面的表格里，看看你有什么发现吧！,月 份,1,月,2,月,3,月,4,月,5,月,6,月,7,月,8,月,9,月,10,月,11,月,12,月,（）年,（）年,（）年,（）年,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,2000,日,一,二,三,四,五,六,1,初二,2,世界湿地日,3,初四,4,立春,5,初六,6,初七,7初八,8,初九,9,初十,10,国际气象节,11,十二,12,十三,13,十四,14,元宵节,15,十六,16,十七,17,十八,18,十九,19,雨水,20,廿一,21,廿二,22,廿三,23,廿四,24,廿五,25,26,27,28,2001,年二月月历,大月,（,31,天,）,小月,（,30,天,）,二月,（,28,天或,29,天,）,29,2009,年,2,月,2008,年,2,月,February,闰年,平年,（,366,）天,（,365,）天,年月日小常识,地球自转一圈是一日,月亮绕地球一圈是一月,地球绕太阳一圈是一年,小知识,平年,365,天,闰年,366,天,为什么二月天数少1,月,3,月,5,月,7,月,8,月,10,月,12,月,单月,双月,七前单月八后双，七个大月心中装。,一,二,三,四,五,六,七,八,九,十,十一,十二,拳头,点数法,一三五七八十腊，,三十一天永不差；,四六九冬三十天，,只有二月有变化。,歌诀记忆法,十二月,十一月,规则：,老师说月份，同学们举手，大月举右手，小月举左手，看谁又快又准确。,小游戏,你知道爸爸妈妈的生日是几月几日吗？知道的同学在你的年历上圈一圈。,不知道的同学回家后要问问爸爸妈妈哦，到时老师希望你们能给爸爸妈妈送上一个小礼物，你的爸爸和妈妈一定会非常感动的哦！,一、判断：,1,、每年都是,365,天。,二、填空,:,1,今年,1,、,2,、,3,月一共有（）天，四月有（）个星期（）天。,91,4,2,7,8,2,、,25,个月就是,2,年零,5,个月。,3,、每年都有,4,个小月。,4,、王刚说,“,国庆节的前一天是,9,月,31,日,”,。,2,、莉莉在外婆家住了连续两个月，有,62,天，这 两个月分别是（）月和（）月。,1,、,1,日,=,（）时，,24,个月,=(),年。,2,、,5,年,=(),月，,1,个大月,=(),天。,3,、平年,1,年有（）天，是（）,个星期零（）天。,4,、中华人民共和国是,1949,年,10,月,1,日成立,的，到今年,10,月,1,日是（）周年。,三、填空。,24,260,31,365,52,1,63,小游戏,猜一猜,9,月,30,日,我明天过生日,我的生日比教师节晚两天。,我是连续两个大月后那一个月的最后一天出生。,我是一年中最后一个小月的第一天出生的。,9,月,11,日,4,月,16,日,11,月,1,日,平年和闰年的认识,人教版小学数学三年级下册,年份,1993,1994,1995,1996,1997,1998,1999,2000,2001,2002,2003,2004,2,月份天数,28,28,28,29,28,28,28,29,28,28,28,29,19974=499,1,19984=499,2,19994=499,3,20004=500,20014=500,1,20024=500,2,20034=500,3,20044=501,闰年,闰年,每,四,年中就有一个闰年。,小结：闰年都是,4,的倍数。,1993,4=498,1,1994,4=498,2,1996,4=499,1995,4=498,3,闰年,1,、说一说你是出生在哪年，是闰年,吗？你,18,岁时那一年是闰年吗？,2,、判别下列年份是不是闰年？是闰年的在后面打,“,”,，是平年的打,“,”,。,1949,年（）,1976,年（）,1985,年（）,2024,年（）,1992,年（）,1900,年,(),19494=4871,19764=494,19924=498,19854=496,1,20244=506,19004=475,日,一,二,三,四,五,六,1,初二,2,世界湿地日,3,初四,4,立春,5,初六,6,初七,7,初八,8,初九,9,初十,10,国际气象节,11,十二,12,十三,13,十四,14,元宵节,15,十六,16,十七,17,十八,18,十九,19,雨水,20,廿一,21,廿二,22,廿三,23,廿四,24,廿五,25,26,27,28,1900,年二月月历,按照每四年一个闰年计算，平均每年就要多算出,0.0078,天，这样经过四百年就会多算出大约,3,天来，因此，每四百年中要减少三个闰年。所以规定,“,四年一闰，百年不闰，四百年又闰,”,也就是,凡遇末尾是两个零的年份，必须是,400,的倍数的才是闰年。,如,2000,年是闰年，而,1700,年则不是闰年。,百科小知识,2,、判别下列年份是不是闰年？是闰年的在后面打,“,”,，是平年的打,“,”,。,1949,年,1976,年,1985,年,2024,年,1992,年,19,00,年,19494=4871,19764=494,19924=498,19854=496,1,20244=506,19004=475,1900,400,=4,300,3,、发散提高。,2012,年,2,月,24,日是小红的第十五个生日。这一年，爷爷再过几天，才过第十五个生日。这是为什么？,1,、爷爷的生日是（）月（）日。,2,、爷爷这一年是（）岁。,3,、爷爷过第,17,个生日时，他是（,）岁。,2,29,60,68,时间过的真快啊，下课时间到了，和同学们交流一下你的收获吧！,