人教版一年级下册数学《数的顺序》公开课

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,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,人教版一年级下册数学数的顺序公开课ppt,0,、,1,、,2,、,3,、,4,、,5,、,6,、,7,、,8,、,9,一,位数,10,、,11,、,12,、,13,、,14,、,1,5,、,16,、,17,、,18,、,19,20,、,21,、,22,、,23,、,24,、,25,、,26,、,27,、,28,、,29,.,90,、,91,、,92,、,93,、,94,、,95,、,96,、,97,、,98,、,99,两,位数,100,三,位数：,一、复习旧知,（,1,）,52,里面有（）个十 和（）个 一；,（,2,）从右边起，第一位是（）位，第二位是（）,位，第三位是（）位。,（,3,）,7,是（）位数；,100,是（）位数；,37,是（）位数。,5,2,个,十,百,一,两,三,2,4,6,8,10,1,3,5,7,9,11,13,15,17,19,12,14,16,18,20,22,33,44,55,66,77,88,99,28,37,46,64,73,82,91,21,23,24,25,26,27,29,30,31,32,34,35,36,38,39,40,41,43,42,45,47,48,49,50,51,52,53,54,56,57,58,59,60,61,62,63,65,67,68,69,70,71,72,74,75,76,78,79,80,83,81,84,85,86,87,89,90,97,93,92,94,95,96,98,100,百数表,2,4,6,8,10,1,3,5,7,9,11,13,15,17,19,12,14,16,18,20,22,44,55,66,77,88,99,28,46,64,73,82,91,21,23,24,25,26,27,29,33,37,31,32,34,35,36,38,39,40,41,43,42,45,47,48,49,50,51,52,53,54,56,57,58,59,60,61,62,63,65,67,68,69,70,71,72,74,75,76,78,79,80,83,81,84,85,86,87,89,90,97,93,92,94,95,96,98,100,30,10,行,2,4,6,8,10,1,3,5,7,9,11,13,15,17,19,12,14,16,18,20,22,44,55,66,77,88,99,28,46,64,73,82,91,21,23,24,25,26,27,29,33,37,31,32,34,35,36,38,39,40,41,43,42,45,47,48,49,50,51,52,53,54,56,57,58,59,60,61,62,63,65,67,68,69,70,71,72,74,75,76,78,79,80,83,81,84,85,86,87,89,90,97,93,92,94,95,96,98,100,30,2,4,6,8,10,1,3,5,7,9,11,91,21,31,41,51,61,71,81,帮数找家,35,53,35,53,2,4,6,8,10,1,3,5,7,9,11,91,21,31,41,51,61,71,81,35,53,46,67,90,帮数找家,46,67,90,52,帮数找家,2,4,6,8,10,1,3,5,7,9,11,13,15,17,19,12,14,16,18,20,22,44,55,66,77,88,99,28,46,64,73,82,91,21,23,24,25,26,27,29,33,37,31,32,34,35,36,38,39,40,41,43,42,45,47,48,49,50,51,52,53,54,56,57,58,59,60,61,62,63,65,67,68,69,70,71,72,74,75,76,78,79,80,83,81,84,85,86,87,89,90,97,93,92,94,95,96,98,100,30,第,1,行,第,2,行,1,1,1,1,1,1,1,1,1,第,3,行,2,2,2,2,2,2,2,2,2,.,第,6,行,5,5,5,5,5,5,5,5,5,2,4,6,8,10,1,3,5,7,9,11,13,15,17,19,12,14,16,18,20,22,44,55,66,77,88,99,28,46,64,73,82,91,21,23,24,25,26,27,29,33,37,31,32,34,35,36,38,39,40,41,43,42,45,47,48,49,50,51,52,53,54,56,57,58,59,60,61,62,63,65,67,68,69,70,71,72,74,75,76,78,79,80,83,81,84,85,86,87,89,90,97,93,92,94,95,96,98,100,30,思考：,1.,第,4,行第,8,列是谁,?,2.,第,5,行第,8,列是谁？,3.,第,8,行第,4,列是谁？,2,4,6,8,10,1,3,5,7,9,11,13,15,17,19,12,14,16,18,20,22,33,44,55,66,77,88,99,28,37,46,64,73,82,91,21,23,24,25,26,27,29,30,31,32,34,35,36,38,39,40,41,43,42,45,47,48,49,50,51,52,53,54,56,57,58,59,60,61,62,63,65,67,68,69,70,71,72,74,75,76,78,79,80,83,81,84,85,86,87,89,90,97,93,92,94,95,96,98,100,这是,百数表,的一部分，根据百数表，在下面的空格填上适当的数。,28,45,69,70,100,数轴,50,51,52,56,59,50,60,70,51 52 53 54 55 56 57 58 59,53,54,55,57,58,60,80,90,两个数,相差的,越多,，就离得,越远,；,相差的,越少,，就离得,越近。,90,91,94,96,95,（,1,）（）最,接近,90.,（,2,）,97,接近（,100 90,），,93,接近（,100 90,）,5,10,15,52,54,56,跳远比赛，下一个是谁？,35,36,37,40,60,70,