I don't recommend that children go to cram schools or interest classes in primary school. After entering these classes, it is inevitable to recite some words and learn some fixed grammar, otherwise parents will feel that there is no gain and training schools will have no way to explain it.

To cultivate children's interest, we should start with their mentality and psychology. I think it would be better for him to watch some animated English programs. Most children like cartoons. It might be better for him to happily accept something new while watching cartoons.

I haven't browsed a lot of children's English textbooks extensively. Judging from the limited access to dozens of textbooks, I think Dora the Adventurer and gogo English for Children in Hong En are both good. You can let the children try.

My sister's daughter came into contact with Hong En's English textbooks in primary school. At that time, she could recite a joke about Snow White and the Seven Dwarfs, but she didn't know what it meant. This is purely the result of repeated reading. Later, her English pronunciation has been very good, and she naturally has the confidence to learn in class. I think this may be the biggest benefit of reading this textbook.

Dora the Adventurer was recommended to me by my colleague's children. I read it well, too. It's simple and naive, which accords with children's psychology. If my daughter were older, I would show her, too.