You might well consider a shorter day for him. In addition, the teachers sound as if they are being pretty abrupt with him and not particularly empathic. Is that how you experience it? You might also consider having him evaluated by a pediatric mental health professional to consider the possibility of an anxiety disorder. It may be that he is simply sensitive by temperament (see The Challenging Child by Stanley Greenspan).
It would be perfectly appropriate, in the context of a menatl health evaluation, to describe the very situation you find yourself in (it would be tantamount to 'ruling out' any emotional condition).
Thanks you for your response.
I think the teachers are a little challenged and do not have the patience for to deal with the crying at times. I believe they are also frustrated by the inability for him to communicate what precisely is bothering him.
As for a shorter day, I am limited on my options due to my work schedule and commute. I could relocate him to the public school by our home which is just a 2.5 hour kindergarten class. This would be the same school he will attend next year. Our other option is to reduce his time to 5 hours instead of 9 hours for 3 days a week at his current school.
Thanks for the recommendation on the book. I have ordered it. We have planned to have our son evaluated by a mental health professional, but have not pulled the trigger. We feel as though we as parents are somehow the problem and find it difficult to acknowledge that there is a disorder of some kind since he seems perfectly normal when in our home and he does not have problems in his other activities through out the day at school.