体积单位间的进率.ppt

状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,第4课时体积单位间的进率（1）,R五年级下册,(1)棱长是1cm的正方体，体积是（）。,(2)棱长是1dm的正方体，体积是（）。,(3)棱长是（）的正方体，体积是1m3。,1dm3,1m,1cm3,复习导入,回顾,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,常用的长度单位：,常用的面积单位：,6米=（）分米=（）厘米,60000厘米=（）分米=（）米,10,10,100,100,想一想：它的体积是多少立方厘米呢？,是1dm3,探究新知,这是一个棱长是1dm正方体，你们知道它的体积是多少立方分米吗？,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,如果把它的棱长看作是10cm，可以把它切成1000块1cm3的小正方体。,101010=1000（cm3）,1dm3=1000cm3,它的底面积是1dm2，就是100cm2，10010，一共是1000cm3。,10010=1000（cm3）,1dm3=1000cm3,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,仿照上面的方法，你能推算出1m3等于多少立方分米吗？,1m3=1000dm3,到现在为止，我们已经学习了哪些计量单位？请整理在表中。,这是我整理的表格。,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,(1)3.8m3是多少立方分米?,想：1m3dm33.8m3dm3,(2)2400cm3是多少立方分米?,想:cm31dm32400cm3dm3,1000,1000,2.4,3800,这个牛奶包装箱的体积是多少?,箱上的尺寸一般是这个长方体的长、宽、高。,60000cm360dm30.06m3,Vabh50304060000(cm3),状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,3.5dm3_cm3,700dm3_m3,3500,0.7,0.25m3_cm3,250000,1.,2.要砌一道长15m、厚24cm、高3m的砖墙。如果每立方米用砖525块，一共要用砖多少块？,24cm0.24m,Vabh,150.24310.8(m3),10.85255670(块),状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,m3,dm3,是由（）级名数向（）级名数化,高级名数向低级名数化要（）进率,高,低,cm3,m3,是由（）级名数向（）级名数化,低级名数向高级名数化要（）进率,高,低,1.我会填。（1）相邻的单位长度间的进率是（），相邻的面积单位间的进率是（）。（2）1m（）dm20cm（）dm（）m5m2（）dm27000cm2（）dm2,10,100,10,2,0.2,500,70,达标检测,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,2.填一填。（1）相邻的体积单位间的进率是（）。（2）9m3（）dm3（）cm34dm34.5m3（）dm33.6m2（）dm23750cm2（）dm22.05m3（）dm3,9000,1000,4000,4500,360,37.5,2050,3.一个无盖的鱼缸，长1.2m，宽80cm，高6dm，这个鱼缸可以放多少立方分米的水？,1.2m=12dm80cm=8dmV=abh=1286=576（dm3）答：这个鱼缸可以放576dm3的水。,单位之间的进率,课堂小结,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,1.课本练习八，第1题、第3题、第4题；2.完成练习册本课时的习题。,课后作业,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路