This must be true. As far as I know, some of them are very good, such as anime train and golden childhood. What impressed me the most should be the education of children in China and Ireland, and the long-term training course for children. At first, I only heard of early education, but I have never been exposed to it. I also specially learned what Gantong training is for. That's a bit excessive. In short, sensory training can improve children's attention and emotional control.