苏教版一年级下册数学3.5 数的顺序_教学课件.pptx

,,,,,数的顺序,情境导入,探究新知,课堂小结,课后作业,认识100以内的数,课堂练习,3,情境导入,1,10,12,19,23,25,26,28,34,37,43,53,48,58,67,64,73,75,76,78,89,82,100,91,,,,,,,,,2,3,4,5,6,7,8,9,,,,,,,,,11,13,14,16,15,17,18,20,,,,,,,22,29,21,24,27