苏教版一年级下册认数-百以内数的认识.rar市公共课一等奖市赛课金奖课件.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,*,*,新课程,新思想,新理念,苏教版一年级数学,第1页,认数,第2页,1,10,12,19,23,25,26,28,34,37,43,48,53,58,64,67,73,75,76,78,82,89,91,100,你能按次序填数吗?,第3页,1,10,12,19,23,25,26,28,34,37,43,48,53,58,64,67,73,75,76,78,82,89,91,100,2,3,4,5,6,7,8,9,11,13,14,15,16,17,18,20,21,22,24,27,29,30,31,32,33,35,36,38,39,40,41,42,44,45,46,47,49,50,51,52,54,55,56,57,59,60,61,62,63,65,66,68,69,70,71,72,74,77,79,80,81,83,84,85,86,87,88,90,92,93,94,95,96,97,98,99,第4页,先横着选几行数,读一读,你发觉哪些有趣现象?,第5页,横着看,第2行前九个数十位上都是1.,横着看,第3行前九个数十位上都是2.,第6页,再竖着选取几排数,读一读,你发觉哪些有趣现象?,第7页,坚着看,第1排个位上都是1.,坚着看,第2排个位上都是2.,第8页,你们还发觉了什么规律？,第9页,找一找第3行第9个数是多少？第8行第5个数是多少？,55前面一个数是多少？后面一个数是多少？64和66之间数是多少？,第10页,读出个位是5数，,读出个位是0数,第11页,依据右表，把下,图中缺数填上,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,15,16,25,26,第12页,依据右表，把下,图中缺数填上,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,23,13,33,22,24,第13页,智慧城堡,加油啊！,第14页,1、,比69大1（）。,2、,比100小1数是（）。,3、,40比（）大1,比（)小1。,填空,70,99,39,41,第15页,89添上1是(),A,90,B,80,C,87,A,第16页,1、从四十五数到五十二。,2、从八十八数到一百。,第17页,想一想,说一说,30,31,32,33,(),(),(),34 35 36,第18页,25,30,35,40,(),(),(),想一想,说一说,45 50 55,第19页,想一想,说一说,80,70,60,50,(),(),(),40 30 20,第20页,谢 谢,制作：黄静,第21页,