一年级数学上册分与合教案全国公开课一等奖百校联赛微课赛课特等奖PPT课件.pptx

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,*,分与合,1/9,1,、这撞大楼一共有几层楼？,一共有,11,层楼。,2,、每一层楼一共有几个房间？,一共有,10,个房间。,3,、猜猜小胖家住是哪一间？,小胖家住在最高一层最旁边一间，现在正开着灯在家呢！你们知道小胖家住在第几层哪一间吗？,小胖家住在第,11,层楼，从右往左第,1,间。,2/9,探究一,请你依据每一层楼亮灯、暗灯情况把它统计下来。,探究一,探究二,10,4 6,7 3,5 5,9 1,2 8,6 4,1 9,0 10,8 2,10 0,3 7,那么多分与合怎么记住它呢？,你发觉了什么？,探究二,3/9,探究二,10,0,10,1,9,2,8,3,7,4,6,5,10,0,9,1,8,2,7,3,6,4,5,10,10,9,8,7,6,5,4,3,2,1,0,0,1,2,3,4,5,6,7,8,9,10,10,0,1,2,3,4,5,6,7,8,9,10,10,9,8,7,6,5,4,3,2,1,0,探究一,探究二,探究二,4/9,小结：,10,以内分拆能够从小到大记，从大到小记，还能够一对一对记。,探究一,探究二,探究二,5/9,练习一,3,4,6,填数楼,练习一,练习二,练习三,6/9,练习一,3,3,2,1,0,0,1,2,3,3,3,2,1,0,0,1,2,3,3,3,0,2,1,0,3,1,2,练习一,练习二,练习三,7/9,练习一,4,0,1,2,3,4,4,3,2,1,0,4,0,1,2,3,4,4,3,2,1,0,4,0,4,1,3,2,4,0,3,1,2,练习一,练习二,练习三,8/9,6,0,1,2,3,4,5,6,6,5,4,3,2,1,0,练习一,6,0,1,2,3,4,5,6,6,5,4,3,2,1,0,6,0,6,1,5,4,2,3,6,0,5,1,2,4,3,练习一,练习二,练习三,9/9,