1. First, search colorful classrooms through WeChat.

2. Find the corresponding official WeChat account in the search list.

3. Click to enter the official account details interface of WeChat and find the service.

4. Click on the service to pop up the drop-down menu and find the test paper to download.

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.