Change teachers and educate children. Children's education from childhood must not be sloppy, because it is related to the development of your child's future life. If you think this teacher has an influence on the development of children, educate children in a way you don't like, you can change to another teacher. Every teacher has different ways to educate children. You can inquire about this teacher's education method before changing teachers, and find a teacher with similar ideas, so that you can let this teacher educate your children.
Talk to your child's teacher. If not, go directly to the principal. There must be a reason why you don't approve of this teacher's educational methods. If you feel that your child has gone bad under the guidance of the teacher, you can talk to the teacher to see if it is the teacher's problem or the child's own problem, and then communicate your educational philosophy with the teacher, who will respect your opinion and change the way of educating children. If after you talk to the teacher, the teacher still educates your child as before, you can talk to her direct supervisor, and the leader will talk to the teacher and gradually change the attitude towards your child. Be polite to the teacher and don't let the teacher vent his negative emotions on your children.
Ask other parents if they have similar questions. You can ask other parents if they have similar questions. If everyone is like this, it proves that this teacher really has a problem. You can talk to this teacher together and let the teacher reflect on his own problems, which is also good for other children, and children and teachers can make progress together.