Re: Islam and "Pants Shirt"
I don't know why all the men in this thread are so concerned about dress code and shalwar kameez etc for a 6 years old.............
I'm only worried about the teacher being harsh on your child, and I see it as a problem as your child might start relating Islam as a strict and harsh religion in later years of his life.
Talk to his teacher about this also when she comes back and if she doesn't understand then look for another institute.