《数的顺序比较大小》课件

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,*,数的顺序 比较大小,人教新课标一年级数学下册,教学目标,1.,初步掌握,100,以内数的顺序。,2.,初步会比较,100,以内数的大小。,3.,初步结合具体事物，使同学们 感受,100,以内数的意义，会用,100,以内的数表示日常生活中的事物，并进行简单的估计和交流。,1,13,4,15,6,18,10,按顺序填写。,2,4,6,8,10,11,13,15,17,19,22,28,33,37,44,46,55,64,66,73,77,82,88,91,99,按照数的顺序，在空格里填数。,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,给十位是,3,的数涂上绿色。,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,给个位是,3,的数涂上黄色。,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,给个位和十位数字相同的数涂上粉色。,2,4,6,8,10,11,13,15,17,19,22,28,33,37,44,46,55,64,66,73,77,82,88,91,99,你还能从表里发现哪些有趣的排列？,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,行第,8,个数是多少,?,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,55,前面一个数是多少？,15,23,在百数图表中找出下框里另外几个数。,16,25,26,13,33,22,24,填空。,1,、比,49,大,1,的数是,(),。,2,、比,100,小,1,的数是,(),。,3,、,70,比,(),大,1,；,比,(),小,1,。,50,99,69,71,儿科病房从,1,号开始看病，现在看第,48,号病人，,前面可能看过了多少个病人？,公鸡,母鸡,公鸡打鸣，母鸡生蛋。,比一比,28,26,百位十位个位,百位十位个位,比一比,39,45,3 2,3 0,64,58,45,47,6,5,4,4,5,7,两位数比大小，先比十位，,十位上的数一样，再比个位，,个位上的数大的这个数就大,。,在 里填上“,”,或“,=”,。,23 33,93 94,57 53,99 100,69 68,40 40,=,49,37,40,51,42,请把这些小鱼按照从小到大的顺序排列起来。,红金鱼,48,条,花金鱼,15,条,黑金鱼,10,条,红金鱼比黑金鱼多得多。,黑金鱼比花金鱼少一些。,本课总结,牢记,100,以内数的顺序，会比较,100,以内数的大小。,