Thanks Trinity.
The reason I choose this for now is Kumon accept children not by their age group, but by their level of knowledge. They have a placement test and they will put the child in appropriate level and work with the child one on one.
Yes.. it is like after school program for the kids. I spoke to the instructor and they gave him a placement test.. Infact they have never have a child this young.. the youngest they have is 4.
My son is very happy at his first day at school.