According to the characteristics of children at different stages, the scene lessons of AI foreign teachers are scientifically and reasonably graded, and the learning content is tailored for each child. Each level includes 57 AI foreign teacher scene classes, 57 interactive practice classes, 34 theme children's songs and 32 picture book stories. Each level can master 600 words, 50 daily expressions and 200 key sentence patterns, so that you can see that common foods can be expressed in English, and you can express your preferences and introduce them.