Children start constructing their world views before they are 10 years old.
This creative stage forms the foundation of the child's life.
Children's drawing is a very important and valuable activity for the construction
of this foundation.

Many children hate math, but they usually like to draw.
Adults, however, play the abacus in their minds, but rarely draw pictures.
When children draw, they are constructing a process of mental development.  
This self-expression is an important process for growth. (Tamiji Kitagawa)