新二年级上册__认识时间__PPT.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,*,*,*,认识时间,执教人：伍家秀,1,2,3,4,5,7,6,8,11,12,10,9,有,12,个大格,1,2,3,4,5,7,6,8,11,12,10,9,5,每一大格,有,5,个小格,钟面上一共有,60,个小格,。,1,2,3,4,5,7,6,8,11,12,10,9,5,10,25,30,20,15,60,35,40,45,50,55,1,2,3,4,5,6,7,8,9,10,11,12,1,小时,时针走一大格，时间经过,1,小时。,1,2,3,4,5,7,6,8,11,12,10,9,5分,分针走一大,格是,5,分,10,分,1,2,3,4,5,6,7,8,9,10,11,12,分针走一圈是,60,分,60,分,5,分,10,分,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,时,=60,分,认识几时几分的一般方法：,时针走过数字几，就是几时，,再看分针从,12,起走了几个小,格，就是几分，合起来就是,几时几分。,练习拨一拨,上午,下午,早读：,7,时,30,分,第一节课：,2:30,放学：,10:50,放学：,4,时,5,分,