人教课标一下数的顺序比较大小课件3市公开课金奖市赛课一等奖课件.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,*,*,*,数的顺序 比较大小,人教新课标一年级数学下册,第1页,第1页,教学目的,1.初步掌握100以内多顺序。,2.初步会比较100以内数大小。,3.初步结合详细事物，使同窗们 感受100以内数意义，会用100以内数表示日常生活中事物，并进行简朴预计和交流。,第2页,第2页,1,13,4,15,6,18,10,按顺序填写。,第3页,第3页,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,按照多顺序，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,第4页,第4页,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数涂上绿色。,第5页,第5页,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数涂上黄色。,第6页,第6页,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数涂上粉色。,第7页,第7页,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,你还能从表里发觉哪些有趣排列？,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8页,第8页,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？,第9页,第9页,15,23,在百数图表中找出下框里另外几种数。,16,25,26,13,33,22,24,第10页,第10页,填空。,1.比49大1数是()。,2.比100小1数是()。,3 70比()大1；,比()小1。,50,99,69,71,第11页,第11页,儿科病房从1号开始看病，现在看第48号病人，,前面也许看过了多少个病人？,第12页,第12页,公鸡,母鸡,公鸡打鸣，母鸡生蛋。,第13页,第13页,比一比,28,26,第14页,第14页,百位十位个位,百位十位个位,比一比,39,45,3 2,3 0,第16页,第16页,64,58,45,47,6,5,4,4,5,7,两位数比大小，先比十位，,十位上数同样，再比个位，,个位上数大这个数就大,。,第17页,第17页,在 里填上“”或“=”。,23 33,93 94,57 53,99 100,69 68,40 40,=,第18页,第18页,49,37,40,51,42,请把这些小鱼从小到大顺序排列起来。,第19页,第19页,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。,第20页,第20页,本课总结,切记100以内多顺序，会比较100以内数大小。,第21页,第21页,