教育专题：人教版小学数学二年级上册《认识时间》PPT课件.ppt
29页
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,*,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,*,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,人教版小学数学二年级上册,复习,12,1,2,3,4,5,6,7,8,9,10,11,3,时,300,1,上课钟面上,一共有（,）大格,1,大格有（,）小格,一共有（,）小格,1,2,3,4,5,7,6,8,11,12,10,9,钟面上,一共有（,）大格,1,大格有（,）小格,一共有（,）小格,1,2,3,4,5,7,6,8,11,12,10,9,12,1,2,3,4,5,7,6,8,11,12,10,9,(,),(,),5,10,15,1,2,3,4,5,7,6,8,11,12,10,9,5,10,25,30,20,15,60,35,40,45,50,55,钟面上,一共有（,）大格,1,大格有（,）小格,一共有（,）小格,1,2,3,4,5,7,6,8,11,12,10,9,12,60,1,2,3,4,5,7,6,8,11,12,10,9,总结：,分针走一小格的时间是1分,1,2,3,4,5,7,6,8,11,12,10,9,5,总结：,分针走一大格的时间是5分,1,2,3,4,5,7,6,8,11,12,10,9,5,10,15,20,25,30,35,40,45,50,55,60,1,2,3,4,5,7,6,8,11,12,10,9,1,时,=60,分,总结：,时针走一大格的时间是1时,1,上课。
8,时,30,分,8,时半,8:30,半小时,=30,分,填一填,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12,60,1,1,5,1,60,11,12,10,1,3,4,5,6,9,8,7,5,9,时,5,分,9:05,11,12,10,1,2,3,4,5,6,9,8,7,5,10,15,20,25,6,时,25,分,6:25,9,时,15,分,9,：,15,1:25,1时25分,8:05,8时5分,认一认,分针走一圈，时针走一个大格1,时=,60,分,一分钟有多长,你在一分钟的时间内,能做些什么？,一寸光阴一寸金，,寸金难买寸光阴作业：,谢 谢 指 导,。
