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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,新人教版二年级数学上册,讲课人：轮台县一小 麦麦提江,12,1,2,3,4,5,6,7,8,9,10,11,3,时,300,复习,12,1,2,3,4,5,6,7,8,9,10,11,330,3,时,30,分,复习,问题：钟表上现在是什么时间？,问题,1,：关于钟面你们都知道哪些知识？,问题,2,：你还有其他发现吗？,1,2,3,4,5,7,6,8,11,12,10,9,钟面上一共有（）个大格。,12,仔细观察，分针走了几个小格？,1,2,3,4,5,7,6,8,11,12,10,9,分针走,1,大格就是,5,分,。,分针走,3,小格就是,3,分,。,1,2,3,4,5,7,6,8,11,12,10,9,5,10,15,20,25,30,35,40,45,50,55,钟面上一共,多少,个小格？,1,2,3,4,5,7,6,8,11,12,10,9,5,10,25,30,20,15,60,35,40,45,50,55,钟面上一共有（）个小格，,60,1,2,3,4,5,7,6,8,11,12,10,9,1,时,=60,分,时针走,1,大格就是,1,时,。,时针走一个大格 分针走一圈,时,60,分,=,9,时,5,分,9:,0,5,试一试,6,时,25,分,6,:,25,试一试,12,时,45,分,12,:,45,试一试,看看谁最棒,轮台二小夏季作息时间表,(,上午）,9,:,30-9:50,9:,50-10:05,10,:,10-10:50,11,：,00-11:40,11,:,40-11:45,第一节课,第二节课,课 间 操,11,:,55-12,：,35,第三节课,第四节课,早读,升旗、早操,12:,45-13,：,25,1:10,11:15,4:20,5:35,我会连线,学到了什么？,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,应用拓展，巩固新知,做一做。,问题：你能准确写出每个钟表所表示的时间吗？,7:30,7:40,8:00,10:45,9:55,6:05,1:20,一分钟有多长,世界上最宝贵的是,时间,同学们一定要,珍惜时间,!,谢谢指导,
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