I have been taking care of children for more than a year, and the environment in Langfang is particularly poor. There are no windows and the air is full of carbon dioxide.

The teaching content is not suitable for children before the age of six. Children should study in play and keep them in that small room. The brain enlightenment before the age of six should be carried out at home, which is very simple and effective. Just buy a professional book, and mothers aged 0-3 are the best early education teachers.