my daughter is 2.5year old,she cry when she goes to school and use very bad language at home.

hi...ask her why she cry..... teacher say anything... everyone go ......you will play at school ...do talk to her school teacher also..that she do not want to come to school..

Before talking to teacher... take baby out and make her happy ( you will be knowing how). And ask baby about her school, friends, teacher. How she feel.. why is she crying.. Maybe bad language means... might be some caretakers are using those words or she have learned from other kids. It's very important to talk to your child once she is back from school. If you have parents watsapp group from that school..talk to her friend's parents. First collect all info of her misbehaving and crying..then confront school.