Hugging is a very comprehensive auxiliary teaching material. He explained it in detail, and then the exercises above were from easy to difficult. Colorful classroom practice is synchronized with classroom teaching materials, and the effect is very good. The content of the textbook is better, and it is more effective to improve the grade, but it is not difficult and has corresponding answers.

Colorful classroom is the collective name of volunteer service activities carried out by grassroots volunteer service teams and volunteers around five service contents: academic counseling, family companionship, feeling the city, self-care education and love donation, aiming at the actual needs of the healthy growth of migrant workers' children.