Personally, I think early education teachers must understand the physical and mental development characteristics of children aged 0-6, as well as relevant knowledge of education, nutrition, brain science and medicine, and attend parent-child classes. You know, unlike kindergarten classes for children, parent-child classes are attended by parents. If parents think that the class is just running and jumping, playing and singing, and they don't feel any gains, it will be difficult for the teacher to renew the fee later.