北京版二年下《时、分、秒的认识》课件[www.edudown.net].ppt

1、北京版二年级数学下册,时、分、秒的认识,教学目标,（1）知识与技能：感知时、分、秒；会认时、分、秒。（2）过程和方法：通过比较时、分、秒的大小，培养大家的观察比较判断能力。（3）情感态度、价值观：培养大家勤于动手动脑的良好习惯；引导大家热爱生活，关注身边的每个事物。,认识钟表,钟面上有（）个大格，（）个小格,时针走1大格是（）时,分针走一小格是（）分走一大格是（）分,时针走1大格，分针正好走（）圈,1时,60分,12,60,1,1,5,1,1,2,3,4,5,6,7,8,9,10,11,12,1,2,3,4,5,6,7,8,9,10,11,12,1,2,3,4,5,6,7,8,9,10,11,

2、12,1,2,3,4,5,6,7,8,9,10,11,12,1,2,3,4,5,6,7,8,9,10,11,12,1,2,3,4,5,6,7,8,9,10,11,12,1,2,3,4,5,6,7,8,9,10,11,12,5,10,15,20,25,30,35,40,45,50,55,60,1,2,3,4,5,6,7,8,9,10,11,12,1,2,3,4,5,6,7,8,9,10,11,12,1,2,3,4,5,6,7,8,9,10,11,12,1,2,3,4,5,6,7,8,9,10,11,12,1,2,3,4,5,6,7,8,9,10,11,12,5,1,2,3,4,5,6,7,8,9

3、,10,11,12,9时10分,9:10,1,2,3,4,5,6,7,8,9,10,11,12,9时5分,9:05,1,2,3,4,5,6,7,8,9,10,11,12,9时3分,9:03,1,2,3,4,5,6,7,8,9,10,11,12,9时20分,9:20,1,2,3,4,5,6,7,8,9,10,11,12,10时35分,10:35,1,2,3,4,5,6,7,8,9,10,11,12,8时,8:00,1,2,3,4,5,6,7,8,9,10,11,12,12时,12:40,1,2,3,4,5,6,7,8,9,10,11,12,8时7分,8:07,1,2,3,4,5,6,7,8,9,

4、10,11,12,4时5分,4:05,1,2,3,4,5,6,7,8,9,10,11,12,8时18分,8:18,1,2,3,4,5,6,7,8,9,10,11,12,2时55分,2:55,1,2,3,4,5,6,7,8,9,10,11,12,2时42分,2:42,1,2,3,4,5,6,7,8,9,10,11,12,8时,8:30,1,2,3,4,5,6,7,8,9,10,11,12,2时,2:55,55分,1,2,3,4,5,6,7,8,9,10,11,12,3时,3:00,1,2,3,4,5,6,7,8,9,10,11,12,4时,4:05,5分,1,2,3,4,5,6,7,8,9,10

5、,11,12,4时,4:05,5分,1,2,3,4,5,6,7,8,9,10,11,12,4时,4:00,1,2,3,4,5,6,7,8,9,10,11,12,9时,9:03,3分,1,2,3,4,5,6,7,8,9,10,11,12,9时,9:03,3分,1,2,3,4,5,6,7,8,9,10,11,12,8时,8:07,7分,1,2,3,4,5,6,7,8,9,10,11,12,8时,8:07,7分,1,2,3,4,5,6,7,8,9,10,11,12,8时,8:00,1,2,3,4,5,6,7,8,9,10,11,12,8时,8:18,18分,1,2,3,4,5,6,7,8,9,10,11,12,3时,3:35,35分,1,2,3,4,5,6,7,8,9,10,11,12,9时,9:20,20分,1,2,3,4,5,6,7,8,9,10,11,12,12时,12:40,40分,1,2,3,4,5,6,7,8,9,10,11,12,12时,12:40,40分,认一认：,9,:,00,9:08,9:30,9:45,1:57,10:24,4:17