In my limited experience, I think the most important things kids learn in Kindergarten are not the academic things (just like that book that was so popular a few years back says <smile>): Things like, how to leave the building for a fire drill; how to cope in a bathroom crowded with pushing 5 year olds; that different kids learn differently; how to read the teachers' moods; what makes other kids laugh.
Kindergarten is a pretty safe way to get the "hang of" school and being around a mix of kids who have different needs. So I would say that if he is happy, then I would just let him bond with the other kids, the teacher, and the school. K is a great bonding year and I think it is important as such. Not every kid likes K, but if your child is happy, I think you can count your blessings and relax a bit. If there are signs of frustration or boredom, then address them with you son and your teacher (altough learning a certain amount of patience in school, isn't a bad thing either).
