数的顺序市名师优质课比赛一等奖市公开课获奖课件.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,*,数次序,100,以内数认识,4,第1页,举手讲话,：,你能按,次序,填一填吗？,1,3,5,7,9,12,14,16,18,20,第2页,小组合作：,尝试把,表格填,完。,2,4,6,8,10,11,13,15,17,19,22,28,33,37,44,46,55,64,66,73,82,88,91,99,第3页,说一说：,横着看,你有什么发觉,?,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,第4页,横着看,个位分别是,1,、,2,、,3,、,4,、,5,、,6,、,7,、,8,、,9,、,0,1,2,3,4,5,6,7,8,9,10,1,1,1,2,1,3,1,4,1,5,1,6,1,7,1,8,1,9,2,0,2,1,2,2,2,3,2,4,2,5,2,6,2,7,2,8,2,9,3,0,3,1,3,2,3,3,3,4,3,5,3,6,3,7,3,8,3,9,4,0,4,1,4,2,4,3,4,4,4,5,4,6,4,7,4,8,4,9,5,0,5,1,5,2,5,3,5,4,5,5,5,6,5,7,5,8,5,9,6,0,6,1,6,2,6,3,6,4,6,5,6,6,6,7,6,8,6,9,7,0,7,1,7,2,7,3,7,4,7,5,7,6,7,7,7,8,7,9,8,0,8,1,8,2,8,3,8,4,8,5,8,6,8,7,8,8,8,9,9,0,9,1,9,2,9,3,9,4,9,5,9,6,9,7,9,8,9,9,10,0,前,一个数总比后一个数小,1,。,第5页,想一想：,竖,着看,你有什么发觉,?,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,第6页,竖着看：个位上数相同，上下相邻两个数相差,10,。,1,2,3,4,5,6,7,8,9,10,1,1,1,2,1,3,1,4,1,5,1,6,1,7,1,8,1,9,2,0,2,1,2,2,2,3,2,4,2,5,2,6,2,7,2,8,2,9,3,0,3,1,3,2,3,3,3,4,3,5,3,6,3,7,3,8,3,9,4,0,4,1,4,2,4,3,4,4,4,5,4,6,4,7,4,8,4,9,5,0,5,1,5,2,5,3,5,4,5,5,5,6,5,7,5,8,5,9,6,0,6,1,6,2,6,3,6,4,6,5,6,6,6,7,6,8,6,9,7,0,7,1,7,2,7,3,7,4,7,5,7,6,7,7,7,8,7,9,8,0,8,1,8,2,8,3,8,4,8,5,8,6,8,7,8,8,8,9,9,0,9,1,9,2,9,3,9,4,9,5,9,6,9,7,9,8,9,9,10,0,第7页,涂一涂：,给十位是,4,数涂上绿色；个位是,4,数涂上黄色；个位和十位数字相同数涂上粉色。,想一想：,经过涂色，有什么发觉呢？,第8页,十位数字相同，个位数字依次递加。,从左往右横着看,十位上是,4,这一行，大家发觉了什么？,第9页,从左往右横着看,每一行，,大家发觉了什么？,1.,每行数都按每次大,1,次序排列。,2.,从第二横行起，每一行前,9,格十位是相同，个位上数相差,1,，最终一格，变成比这行十位上数大,1,整十数。,第10页,从上往下竖,着看,个位是,4,这一行，你发觉了什么？,十位数字依次递加，个位数字相同。,第11页,从上往下竖着看，,每一行，,大家发觉了什么？,1.,每列个位上数是相同。,2.,每列上下两个数之间相差,10,。,第12页,从,左上角往右下角看,每一斜行，大家发觉了什么？,从,左上角到右下角斜行，相邻两个数之间相差,11,。,第13页,从,右上,角往左下,角看,每一斜行，大家发觉了什么？,从右上角到,左下,角,斜行，相邻两个数之间相差,9,。,第14页,按次序连点成画。,第15页,填一填。,34,23,25,43,45,65,54,56,74,76,78,67,69,87,89,第16页,在填好百数表上涂一涂。,（,1,）把个位上数是“,5”,涂上黄色。,（,2,）把十位上数是“,7”,涂上绿色。,（,3,）把个位和十位上数相同涂上粉色。,（,4,）把个位上数比十位上数少,6,涂上橙色。,第17页,（,1,）把个位上数是“,5”,涂上黄色。,第18页,（,2,）把十位上数是“,7”,涂上绿色。,第19页,（,3,）把个位和十位上数相同涂上粉色。,第20页,（,4,）把个位上数比十位上数少,6,涂上橙色。,第21页,这节课你们都学会了哪些知识？,第22页,第23页,第24页,