小学数学人教二年级小学数学人教版二年级上册《认识时间》.ppt

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,*,人教版小学数学二年级上册,河南省焦作市沁阳市第一小学,执教人 何 靖,认识时间,人教版小学数学二年级上册,认识时间,钟表,12,1,2,3,4,5,6,7,8,9,10,11,3,时,300,复习,7,时,7:00,1,学习目标：,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,、培养学生珍惜时间的好习惯。,问题：关于钟面你们都知道哪些知识？,（一）认识钟面,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,1,2,3,4,5,7,6,8,11,12,10,9,12,60,5,1,2,3,4,5,7,6,8,11,12,10,9,二,认识时和分,1,2,3,4,5,7,6,8,11,12,10,9,5,1,2,3,4,5,7,6,8,11,12,10,9,5,10,15,20,25,30,35,40,45,50,55,60,1,2,3,4,5,7,6,8,11,12,10,9,分针走一圈，时针走一个大格,1,时,=60,分,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，是,分。,分。,12,60,1,1,5,1,60,填一填：,一分钟有多长,11,12,10,1,3,4,5,6,9,8,7,2,从四时开始数。,2,11,12,10,1,3,4,5,6,9,8,7,2,从四时开始数。,4时,5,分,4,:05,2,11,12,10,1,3,4,5,6,9,8,7,2,从四时开始数。,4时30分或4时半,4,:,30,2,11,12,10,1,3,4,5,6,9,8,7,2,从四时开始数。,4时4,5,分,4,:,4,5,2,120,855,1:25,1,时,25,分,8:05,8,时,5,分,6:50,6,时,50,分,认一认,一寸光阴一寸金，,寸金难买寸光阴。,河南省沁阳市第一小学,2016,年,4,月,