口算除法,人教新课标版三年级数学下册,教学目标：1.在实践操作活动中理解掌握一位数除法（被除数各个数位上的数都能被除数整除的）口算方法。2.能正确、熟练地口算简单的除数是一位数的除法。3.在与他人交流思维的过程中学会倾听与反思。,口算天天练：,31=,3,62=,3,42=,2,84=,2,93=,3,81=,8,99=,1,66=,1,抢答：,80里有（ ）个十；,8,400里有（ ）个百；,3000里有（ ）个千。,4,3,1,口算 423,1,口算 423,1,口算 423,1,口算 423,30 3 = 10,1,口算 423,30 3 = 10,1,口算 423,30 3 = 10,1,口算 423,30 3 = 10,1,口算 423,30 3 = 10,12 3 = 4,10 + 4 = 14,2,口算 4203,怎样想？,42314,4203140,巩固练习:,8 4 =80 4 =800 4 =8000 4=,2,20,200,2000,1,10,100,1000,7 7 =70 7 =700 7 =7000 7 =,
