人教版一下数学摆一摆、想一想获奖公开课课件.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,综合与实践,摆一摆，,想一想,执教人：李长涓,十位,个位,组成的数,3,颗,十位,个位,组成的数,3,颗,30,12,21,3,十位,个位,组成的数,3,颗,30,12,21,3,摆一摆,4,颗,十位,个位,组成的数,4,13,22,31,40,十位,个位,组成的数,40,31,22,13,4,4,颗,5,个,4,颗,5,个,小 大,大 小,有序地摆,摆一摆,摆一摆,5,颗,想一想,十位,个位,组成,的数,3,12,21,30,3,颗,4,个,十位,个位,组成,的数,2,11,20,十位,个位,组成,的数,4,13,22,31,40,十位,个位,组成,的数,5,14,23,32,41,50,2,颗,3,个,4,颗,5,个,5,颗,6,个,智慧城堡,7,、,16,、,34,、,43,、,52,、,61,、,70,这几个数是由几个小珠子摆出来的？,7,、,16,、,25,34,、,43,、,52,、,61,、,70,。,7,7,7,7,7,7,7,颗,7,智慧闯关,第一关,8,、,17,、,26,、,35,、,44,、,53,、,62,、,71,、,80,有两个数被调皮的 遮住了，他们是几呢？,第二关,智慧闯关,8,、,17,、,26,、,35,、,44,、,53,、,62,、,71,、,80,有两个数被调皮的 遮住了，他们是几呢？,第二关,智慧闯关,6,、,15,、,24,、,33,、,42,、,51,、,60,现在，遮住了所有的数，,你们知道他们是哪些数么？,第三关,智慧闯关,智慧城堡,密码：一个和是,6,的两位数，个位上的数比十位上的数大,2,。,想一想,想一想,40,31,22,13,4,4,30,21,12,3,3,20,11,2,2,10,1,1,5,41,32,23,14,5,50,6,42,33,24,15,6,51,41,60,7,43,34,25,16,7,52,41,61,41,70,8,44,35,26,17,8,53,41,62,41,71,41,80,9,45,36,27,18,9,54,41,63,41,72,41,81,41,90,想一想,想一想,想一想,40,31,22,13,4,4,30,21,12,3,3,20,11,2,2,10,1,1,5,41,32,23,14,5,50,6,42,33,24,15,6,51,41,60,7,43,34,25,16,7,52,41,61,41,70,8,44,35,26,17,8,53,41,62,41,71,41,80,9,45,36,27,18,9,54,41,63,41,72,41,81,41,90,10,想一想,想一想,想一想,40,31,22,13,4,4,30,21,12,3,3,20,11,2,2,10,1,1,5,41,32,23,14,5,50,6,42,33,24,15,6,51,41,60,7,43,34,25,16,7,52,41,61,41,70,8,44,35,26,17,8,53,41,62,41,71,41,80,9,45,36,27,18,9,54,41,63,41,72,41,81,41,90,10,想一想,10,颗,想一想,40,31,22,13,4,4,30,21,12,3,3,20,11,2,2,10,1,1,5,41,32,23,14,5,50,6,42,33,24,15,6,51,41,60,7,43,34,25,16,7,52,41,61,41,70,8,44,35,26,17,8,53,41,62,41,71,41,80,9,45,36,27,18,9,54,41,63,41,72,41,81,41,90,10,55,46,37,28,19,64,41,73,41,82,41,91,