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,*,苏教版小学数学一年级上册,11-20各数的认识,大公镇古贲小学 储刘纯,1,一捆10枝,2,体育明星:3人,3,合作明星:6人,4,思维明星:10人,5,10 个 一,1 个 十,是,6,书写明星:12人,7,摆12根小棒,怎样才能一眼就看出来?,1个十,2个一,和,合起来是,12,8,16,11,13,15,14,17,18,19,9,是,20,()个十,2,10,2,5,4,3,7,6,9,8,11,10,13,14,12,16,15,17,19,18,20,11,2,5,4,3,7,6,9,8,11,10,13,14,12,16,15,17,19,18,20,12,2,5,4,3,7,6,9,8,11,10,13,14,12,16,15,17,19,18,20,13,2,5,4,3,7,6,9,8,11,10,13,14,12,16,15,17,19,18,20,14,()颗,14,()把,17,15,16,祝同学们学习愉快 再见!,17,