[kacres]

He does very well in school, no make-up work, he is only in kindergarden.But his report cards are all very well,and his teachers say he is above average in somethings.

[eyespysomething]

no make-up work, he is only in kindergarden

Well, d'uh on my part. LOL!

I would just explain to the principal about him being a preemie and the possible health ramifications, if needed, could your doctor write a letter explaining the same? And explain that as long as he is performing at grade level or above, maybe they should just butt out of your lives, oh wait sorry. Maybe ask him since your son is at or above grade level, if this is really a problem?