小学数学二年级上册认识时间.ppt

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上传时间：2023-04-20

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1、认识时间,二年级上册,你能说出钟面上的时间吗？,3,3：00,（）时,分针,时针,12,3,4：00,（）时,4,（）时,8,8：00,3：00,9：00,6：00,12：00,分针,时针,3,4,5,6,7,8,9,10,11,12,2,钟面上有（）个大格,12,1,2,3,4,5,7,6,8,11,12,10,9,5,10,15,(),1,2,3,4,(),每个大格里有（）个小格,5,1,2,3,4,5,7,6,8,11,12,10,9,5,10,25,30,20,15,60,35,40,45,50,55,每个大格里有（5）个小格,一共有（60）个小格,11,12,10,1,2,3,4,5

2、,6,9,8,7,钟面上有12个大格,有60个小格,11,12,10,1,2,3,4,5,6,9,8,7,时针走1大格是1小时,11,12,10,1,2,3,4,5,6,9,8,7,1,分针走1小格是1分。,12,1,2,3,4,5,6,7,8,9,10,11,1分钟有多长呢？,11,12,10,1,2,3,4,5,6,9,8,7,5,分针走1大格是5分。,11,12,10,1,2,3,4,5,6,9,8,7,5,10,11,12,10,1,2,3,4,5,6,9,8,7,5,10,15,5,10,11,12,10,1,2,3,4,5,6,9,8,7,5,10,15,20,11,12,10,1

3、,2,3,4,5,6,9,8,7,5,10,15,20,25,11,12,10,1,2,3,4,5,6,9,8,7,5,10,15,20,25,30,11,12,10,1,2,3,4,5,6,9,8,7,5,10,15,20,25,30,35,11,12,10,1,2,3,4,5,6,9,8,7,5,10,15,20,25,30,35,40,11,12,10,1,2,3,4,5,6,9,8,7,5,10,15,20,25,30,35,40,45,11,12,10,1,2,3,4,5,6,9,8,7,5,10,15,20,25,30,35,40,45,50,11,12,10,1,2,3,4,5,

4、6,9,8,7,5,10,15,20,25,30,35,40,45,50,55,11,12,10,1,2,3,4,5,6,9,8,7,5,10,15,20,25,30,35,40,45,50,55,60,1,2,3,4,5,7,6,8,11,12,10,9,1时=60分,分针走一圈，时针走一个大格。1时 60分,=,11,12,10,1,2,3,4,5,6,9,8,7,12：00,11,12,10,1,2,3,4,5,6,9,8,7,1：00,11,12,10,1,2,3,4,5,6,9,8,7,1：多,11,12,10,1,2,3,4,5,6,9,8,7,1：多,11,12,10,1,2,3

5、,4,5,6,9,8,7,1：多,11,12,10,1,2,3,4,5,6,9,8,7,2：00,11,12,10,1,2,3,4,5,6,9,8,7,4：00,11,12,10,1,2,3,4,5,6,9,8,7,4：多,11,12,10,1,2,3,4,5,6,9,8,7,4：多,11,12,10,1,2,3,4,5,6,9,8,7,5：00,11,12,10,1,2,3,4,5,6,9,8,7,9：00,11,12,10,1,2,3,4,5,6,9,8,7,9：多,11,12,10,1,2,3,4,5,6,9,8,7,11,12,10,1,2,3,4,5,6,9,8,7,11：多,11,

6、12,10,1,2,3,4,5,6,9,8,7,12：00,11,12,10,1,2,3,4,5,6,9,8,7,11,12,10,1,2,3,4,5,6,9,8,7,11,12,10,1,2,3,4,5,6,9,8,7,5,4时,4：05,5分,11,12,10,1,2,3,4,5,6,9,8,7,5,4：15,10,15,11,12,10,1,2,3,4,5,6,9,8,7,5,4：30,10,30,20,25,15,4时半,11,12,10,1,2,3,4,5,6,9,8,7,5,4：45,10,30,20,25,15,35,40,45,11,12,10,1,2,3,4,5,6,9,8,7,4：55,30,35,40,45,50,55,11,12,10,1,2,3,4,5,6,9,8,7,5：00,30,45,15,谁最棒？,715,120,525,845,1150,730,740,800,120,1045,955,605,930,640,935,请珍惜每一分，让生命更有价值！,