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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,*,认识时间,线索人物孙悟空自我介绍。,上学啦!,我们都准备去上学了,悟空还在呼呼大睡。,一甲班,报告!,悟空上课总是迟到,,你有什么好办法帮帮他吗?,谜 语,一匹马儿两条腿,,日夜奔跑不怕累。,滴答滴答提醒你,,时间一定要珍惜。,(,打一生活用品,),同学们都把好办法制作成礼物送给悟空,但拆礼物前要先猜谜语。,1.,说出钟面所表示的时刻。,2.,你是怎么知道的?,100,400,600,900,1,时,9,时,6,时,4,时,00,仔细观察时针和分针,你发现了什么?,整时分针长长指,时针指几就几时,11,12,10,11,12,10,( ),( ),10,15,11,12,10,10,25,30,20,15,60,35,40,45,50,55,钟面上一共有,60,个小格。,11,12,10,10,25,30,20,15,60,35,40,45,50,55,12,1,2,3,4,5,6,7,8,9,10,11,12,时针与分针的关系,分针走一圈,时针走一个大格。,1,时,60,分,1.,说出钟面所表示的时刻。,2.,你是怎么知道的?,930,640,835,705,9时30分,7,时5分,8,时35分,6,时40分,谁最棒?,填一填,钟面上有,个大,格,,个小格。,时针走个大格是,分针走个小格是,时针走个大格,分针正好走,走大格是,时。,分,,圈,,分。,是,分。,1,时,=60,分,12,60,1,1,5,1,60,12,1,2,3,4,5,6,7,8,9,10,11,7,时,52,分,12,1,2,3,4,5,6,7,8,9,10,11,9,时,17,分,12,1,2,3,4,5,6,7,8,9,10,11,4,时,4 00,:,12,1,2,3,4,5,6,7,8,9,10,11,1,时,08,分,1 08,:,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,47,分,4 47,:,12,1,2,3,4,5,6,7,8,9,10,11,6,时,5,分,6 05,:,12,1,2,3,4,5,6,7,8,9,10,11,8,时,55,分,8 55,:,一分钟有多长,你在一分钟的时间内,能做些什么?,小组合作,:,制作一个钟面模型,要求:时针、分针可以活动,,钟面上所表示的时刻,是,11,:,10,。,作息表,世界上最宝贵的是,时间,同学们一定要,珍惜时间,!,谢谢!再见!,
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