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1、,认识时间,认识时间,沂河苑小学 胡楠,1,课堂节课,猜谜语,小小圆形运动场三个选手比赛忙跑的路程没多少用的时间不一样,2,课堂节课,钟表上现在是什么时间？,钟表上现在是什么时间？,1,3,课堂节课,认识钟面,关于钟面你们都知道哪些知识？,4,课堂节课,5,课堂节课,1,2,3,4,5,7,6,8,11,12,10,9,12,6,课堂节课,1,2,3,4,5,7,6,8,11,12,10,9,( ),( ),5,10,15,7,课堂节课,1,2,3,4,5,7,6,8,11,12,10,9,5,10,25,30,20,15,60,35,40,45,50,55,8,课堂节课,12,60,5,9,
2、课堂节课,1,2,3,4,5,7,6,8,11,12,10,9,1时=60分,10,课堂节课,1,2,3,4,5,7,6,8,11,12,10,9,11,课堂节课,1,2,3,4,5,7,6,8,11,12,10,9,5,12,课堂节课,1,2,3,4,5,7,6,8,11,12,10,9,5,10,15,20,25,30,35,40,45,50,55,13,课堂节课,11,12,10,1,3,4,5,6,9,8,7,5,9时 5分,9:05,想一想,14,课堂节课,11,12,10,1,2,3,4,5,6,9,8,7,5,10,15,20,25,6时25分,6:25,15,课堂节课,9时15
3、分9：15,16,课堂节课,11时55分11：55,17,课堂节课,认一认,18,课堂节课,9时30分,9：30,6时40分,6：40,8时35分,8：35,19,课堂节课,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。,12,60,1,1,5,1,60,20,课堂节课,=,分针走一圈，时针走一个大格。1时=60分,21,课堂节课,11,12,10,1,3,4,5,6,9,8,7,2,从四时开始数。,22,课堂节课,11,12,10,1,3,4,5,6,9,8,7,2,从四时开始数。,4时 5分,4:05,23,课堂节课,11,12,10,1,3,4,5,6,9,8,7,2,从四时开始数。,4时30分或4时半,4:30,24,课堂节课,11,12,10,1,3,4,5,6,9,8,7,2,从四时开始数。,4时45分,4:45,25,课堂节课,时针走过数字4，分针从12起走了多少个小格，就是4时多少分。,26,课堂节课,做一做,问题：你能准确写出每个钟表所表示的时间吗？,7:30,7:40,8:00,1:20,10:45,9:55,6:05,27,课堂节课,生活中的数学,28,课堂节课,这节课学到了什么？,29,课堂节课,再见,30,课堂节课,