课题三10以内加法的复习与整理.ppt

第五单元610的认识和加减法课题三10以内加法的复习与整理,执教：北京市西城区黄城根小学史冬梅,人教版数学一年级上册,数学王国,欢迎你！,灵巧殿,5,8,3,灵巧殿,2,7,5,灵巧殿,1,9,8,灵巧殿,2,4,2,灵巧殿,4,2,6,灵巧殿,3,7,10,聪明殿,2,7,=,9,聪明殿,3,6,=,9,聪明殿,1,9,=,10,聪明殿,4,2,=,6,聪明殿,3,5,=,8,聪明殿,6,1,=,7,智慧殿,10,智慧殿,9,1,8,2,7,3,6,4,5,5,4,6,3,7,2,8,1,9,在加法算式中：把加号前面的数叫做第一个加数；把加号后面的数叫做第二个加数。,9,1,8,2,7,3,6,4,5,5,4,6,3,7,2,8,1,9,从左向右看，发现第一个加数的排列规律了吗？,第一个加数一个比一个少一。,再从左向右观察，你又发现了什么规律？,第二个加数一个比一个多一。,和不变。,9,1,8,2,7,3,6,4,5,5,4,6,3,7,2,8,1,9,猜猜看！,9,1,8,2,7,3,6,4,5,5,4,6,3,7,2,8,1,9,猜猜看！,9,1,8,2,7,3,6,4,5,5,4,6,3,7,2,8,1,9,猜猜看！,9,1,8,2,7,3,6,4,5,5,4,6,3,7,2,8,1,9,9,1,9,1,交换了两个加数的位置，和没变。,9,1,8,2,7,3,6,4,5,5,4,6,3,7,2,8,1,9,8,2,8,2,交换了两个加数的位置，和没变。,9,1,8,2,7,3,6,4,5,5,4,6,3,7,2,8,1,9,7,3,7,3,交换了两个加数的位置，和没变。,9,1,8,2,7,3,6,4,5,5,4,6,3,7,2,8,1,9,6,4,6,4,交换了两个加数的位置，和没变。,9,1,8,2,7,3,6,4,5,5,4,6,3,7,2,8,1,9,1,9,交换了两个加数的位置，和没变。,1,9,2,8,8,2,3,7,7,3,4,6,6,4,9,1,8,2,7,3,6,4,5,5,4,6,3,7,2,8,1,9,回顾：,9,1,8,2,7,3,6,4,5,5,4,6,3,7,2,8,1,9,试试看！,9,1,8,2,7,3,6,4,5,5,4,6,3,7,2,8,1,9,8,1,7,2,6,3,5,4,4,5,3,6,2,7,1,8,你又发现了什么规律呢？,9,1,8,2,7,3,6,4,5,5,4,6,3,7,2,8,1,9,8,1,7,2,6,3,5,4,4,5,3,6,2,7,1,8,猜猜看：,7,1,6,2,5,3,4,4,3,5,2,6,1,7,。,9,1,8,2,7,3,6,4,5,5,4,6,3,7,2,8,1,9,8,1,7,2,6,3,5,4,4,5,3,6,2,7,1,8,试试看：,7,1,6,2,5,3,4,4,3,5,2,6,1,7,6,1,5,2,4,3,3,4,2,5,1,6,9,1,8,2,7,3,6,4,5,5,4,6,3,7,2,8,1,9,8,1,7,2,6,3,5,4,4,5,3,6,2,7,1,8,试试看：,7,1,6,2,5,3,4,4,3,5,2,6,1,7,6,1,5,2,4,3,3,4,2,5,1,6,5,1,4,2,3,3,2,4,1,5,9,1,8,2,7,3,6,4,5,5,4,6,3,7,2,8,1,9,8,1,7,2,6,3,5,4,4,5,3,6,2,7,1,8,试试看：,你能够按照规律继续写完吗？,7,1,6,2,5,3,4,4,3,5,2,6,1,7,6,1,5,2,4,3,3,4,2,5,1,6,5,1,4,2,3,3,2,4,1,5,4,1,3,2,2,3,1,4,3,1,2,2,1,3,1,1,2,1,1,2,9,1,8,2,7,3,6,4,5,5,4,6,3,7,2,8,1,9,8,1,7,2,6,3,5,4,4,5,3,6,2,7,1,8,7,1,6,2,5,3,4,4,3,5,2,6,1,7,6,1,5,2,4,3,3,4,2,5,1,6,5,1,4,2,3,3,2,4,1,5,4,1,3,2,2,3,1,4,3,1,2,2,1,3,1,1,2,1,1,2,横向看：,纵向看：,9,1,8,2,7,3,6,4,5,5,4,6,3,7,2,8,1,9,8,1,7,2,6,3,5,4,4,5,3,6,2,7,1,8,7,1,6,2,5,3,4,4,3,5,2,6,1,7,6,1,5,2,4,3,3,4,2,5,1,6,5,1,4,2,3,3,2,4,1,5,4,1,3,2,2,3,1,4,3,1,2,2,1,3,1,1,2,1,1,2,左斜向看：,9,1,8,2,7,3,6,4,5,5,4,6,3,7,2,8,1,9,8,1,7,2,6,3,5,4,4,5,3,6,2,7,1,8,7,1,6,2,5,3,4,4,3,5,2,6,1,7,6,1,5,2,4,3,3,4,2,5,1,6,5,1,4,2,3,3,2,4,1,5,4,1,3,2,2,3,1,4,3,1,2,2,1,3,1,1,2,1,1,2,右斜向看：,回顾小结,9,1,8,2,7,3,6,4,5,5,4,6,3,7,2,8,1,9,8,1,7,2,6,3,5,4,4,5,3,6,2,7,1,8,7,1,6,2,5,3,4,4,3,5,2,6,1,7,6,1,5,2,4,3,3,4,2,5,1,6,5,1,4,2,3,3,2,4,1,5,4,1,3,2,2,3,1,4,3,1,2,2,1,3,1,1,2,1,1,2,猜猜看！,9,1,8,2,7,3,6,4,5,5,4,6,3,7,2,8,1,9,8,1,7,2,6,3,5,4,4,5,3,6,2,7,1,8,7,1,6,2,5,3,4,4,3,5,2,6,1,7,6,1,5,2,4,3,3,4,2,5,1,6,5,1,4,2,3,3,2,4,1,5,4,1,3,2,2,3,1,4,3,1,2,2,1,3,1,1,2,1,1,2,猜猜看！,9,1,8,2,7,3,6,4,5,5,4,6,3,7,2,8,1,9,8,1,7,2,6,3,5,4,4,5,3,6,2,7,1,8,7,1,6,2,5,3,4,4,3,5,2,6,1,7,6,1,5,2,4,3,3,4,2,5,1,6,5,1,4,2,3,3,2,4,1,5,4,1,3,2,2,3,1,4,3,1,2,2,1,3,1,1,2,1,1,2,猜猜看！,1,2,3,4,5,6,7,8,9,1,8,2,7,3,6,4,5,5,4,6,3,7,2,8,1,9,8,1,7,2,6,3,5,4,4,5,3,6,2,7,1,8,7,1,6,2,5,3,4,4,3,5,2,6,1,7,6,1,5,2,4,3,3,4,2,5,