人教版小学数学 二年级上册第七单元,认识时间,教学内容： 1、认识时和分，知道1时=60分； 2、认识时间，会用几时几分表示时间； 3、解决与时间有关的简单的实际问题,分针指向12 时针指向几就是几时,问题：你能读出这个钟面的时间吗,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,问题2：你还能继续数下去吗,10,20,25,30,35,40,45,50,55,60,问题1：仔细观察，钟面有几小格,11,12,10,1,2,3,4,5,6,9,8,7,1,分针是用来计分 它走1小格是1分,1,2,3,4,5,7,6,8,11,12,10,9,同学们现在是几分,1,2,3,4,5,7,6,8,11,12,10,9,5,1,2,3,4,5,7,6,8,11,12,10,9,5,10,15,20,25,30,35,40,45,50,55,活动时间,让我们一起来拨一拨分针，说一说时间,1,2,3,4,5,7,6,8,11,12,10,9,时针用来计时,分针用来计分,时针用来计时,11,12,10,1,2,3,4,5,6,9,8,7,11,12,10,1,2,3,4,5,6,9,8,7,11,12,10,1,2,3,4,5,6,9,8,7,11,12,10,1,2,3,4,5,6,9,8,7,11,12,10,1,2,3,4,5,6,9,8,7,12:30,12时半,11,12,10,1,2,3,4,5,6,9,8,7,11,12,10,1,2,3,4,5,6,9,8,7,11,12,10,1,2,3,4,5,6,9,8,7,11,12,10,1,2,3,4,5,6,9,8,7,11,12,10,1,2,3,4,5,6,9,8,7,1,2,3,4,5,7,6,8,11,12,10,9,1时=60分,问题：你能读出这个钟面的时间吗,4:05,4时5分,4:30,4时30分或4时半,4:45,4时45分,730,740,800,120,1045,955,605,930,640,935,请珍惜每一分，让生命更有价值