Advice on my 3 year old son

My 3 year old son is a only child, He is in his first year of pre-school only for a few months now. He is not around other children on a daily basis other than the time he has in school. The teachers seem to think he has trouble comprehending things and not understanding at times.At home it seems he can understand and comprehend almost anything i show him. he loves to builg lincoln logs and lego blocks and plays like any normal child does. Do you think they are being to tough on him or shouild i be concerned?  Any info would be appreciated......Concerned Daddy.

[Carolina2806]

You said he can understand and comprehend almost anything you show him and that he likes to play with lincoln logs and lego blocks. Some children are visual spatial learners and they react to ordinary instruction differently than other children might. My daughter is a spatial learner and is very good in art. Also, it could be an age thing and adjusting to pre-school.  
Here is some info on visual spacial learners:

http://www.gifteddevelopment.com/Visual_Spatial_Learner/vsl.htm

Check it out--you may find that you also learn in this way--and maybe you can come up with ways to get through to him. If you think it fits--you could approach his teachers about what you have learned and come up with ways to solve some of his issues at preschool.

Good Luck.