General basic requirements: Teachers who teach art must learn art, teachers who teach music must learn music, teachers have affinity, like children and learn preschool education.

But there are few strict majors. Generally, early education institutions with special ideas will generally train teachers, but they are only conceptual training and cannot be called majors. This is the general situation of early education institutions.

I have seen a really strict one, but I have only tried it. It's a small organization, and it's about children's personality and more psychological aspects. Basic requirements must be met. And the teacher must be a national psychological counselor. Teachers always have mentors, and it takes a long time to train their knowledge. Then they practice, experience and summarize. While improving one's personality, one should know how to use ideas and methods, and truly become a qualified teacher. Most importantly.