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1、小数的产生和意义,0,1米,把1米平均分成10份,( ) 分米,( )米,( )米,0.3,3,( ) 分米,( )米,( )米,7,0.7,( ) 分米,( )米,( )米,1,0.1,（这是一位小数）,10,20,30,40,50,60,70,80,90,0,1厘米,2,3,4,5,6,7,8,9,10,( )米,( )米,( )米,( )米,把1米平均分成100份。,0.03,0.06,（这是两位小数）,( )米,( )米,0.01,( )米,( )米,0.12,把1米平均分成1000份。,0,1厘米,米（ ）米（ ）米,0.001米（ ）米（ ）米,0.006,0.013,（这些是三位
2、小数）,10,10,10,100,100,100,1000,1000,1000,0.1,0.3,0.7,0.01,0.03,0.06,0.001,0.006,0.013,分母是10、100 、 1000 分数可以用小数表示,一位小数,两位小数,三位小数,0.6,分数：,小数：,0.7,0.32,括号里能填几？你是怎么知道的？,0.3里面有（ ）个 ，0.07里面有( ) 0.5里面有（ ）个 ，0.09里面有( ),3,5,7,9,第一关,个,个,小数的计数单位是十分之一、百分之一、千分之一写作0.1、0.01、0.001,十分之一,百分之一,0.1,0.01,小数每相邻两个单位间的进率是 。,10,下面的括号里能填几？ 0.1米里面有（ ）个0.01米； 0.01米里面有（ ）个0.001米,10,10,0.1,0.01,0.001,10,10,第二关,13,100,1000,10000,10,9,47,1,0.047,0.13,0.0001,0.9,帮助小手套，找到它的好朋友。,第三关,下面的括号里能填几？ 0.8里面有（ ）个0.1 0.32米里面有（ ）个,8,32,第四关,想一想,说一说: 你在这一节课里有什么收获?有什么发现或想到了什么?,