三年级数学下册第6章年、月、日第2课时平年和闰年课件新人教版.ppt

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问题1:观察年历,想一想上节课我们研究了哪些知识。,问题2:关于年、月、日,你还有什么问题?2月很特别,让我们一起来研究吧。,问题:观察这两个月的天数,一样吗?这里有什么知识呢?,活动:把上面月历中的闰年都圈出来,你有什么发现?,问题1:关于平年和闰年,你还有什么问题吗?,问题2:每一年的天数都一样多吗?一会儿平年一会儿闰年, 这么复杂,究竟因为什么呢?,活动1:回忆,关于年、月、日我们都了解了哪些? 小组合作,写一写、画一画、记一记。,要求:任选一题(可多选),独立解决,交流想法。,要求:同伴交流,说一说你是怎么想的。,活动2:解决问题(第81页第4题、第5题、第7题)。,这节课你有什么收获?,课本第81页练习十七第6题。,xx小学 x年级x班,xxx,

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