1.Cognitive learning:Let baby know these numbers from 0 to 9,and
the symbols of add, subtract, multiply and
divide.
2.Arithmetic practicing: Mothers can teach babies how to add,
subtract, multiply and divide
?
3. Operational ability:Babies can practice their hands ,eyes
and brains's harmony ,fingers's flexibility when they play the
board.
4.Expression ability: Let babies describe the board which they
grasping.
