First of all, you can give the kindergarten teacher some gifts, buy her something she needs, or give her a red envelope directly. People nowadays are very realistic, and most of them are snobs. In this society, if you don't spend a little money, others won't take you seriously, not to mention that you want kindergarten teachers to be good to children by doing nothing. Now many teachers are morally bankrupt, not only in kindergartens, but also in many schools. Parents will pay attention to your children only if they give gifts to their teachers.

Secondly, you can try to complain to the teacher at school. Since you spend money on kindergarten like everyone else, why can't you treat the teacher equally? This is the teacher's fault. If you go to school to complain about her, the teacher will probably be expelled, so if you do this, maybe she will not be bad to your child again, because she is really afraid that you will really complain about her.

I think since I chose to be a teacher, I should do it well and be a qualified teacher.