My girl 3years plus now. Recently her childcare teacher said if she raise her voice at her for doing something not so right, my girl will cry either silently at a corner or backface her and cry.. this breaks my heart.. at home she also cry easily if we never give in to her or raise our voice.. is this normal? What can we do?

I think it is normal. My niece used to be like this. It isn just that kids just keep trying to get used to different kind of behaviours . It just takes time for them. I would suggest just sit with your girl, talk about funny things , make her laugh and then talk to her about this and also tell her that sometimes people get angry if we do something wrong but be strong, don't cry and it is all gonna be fine :) Just tell her that it is okay to make mistakes to learn and become a better person :)