Help: Google Classroom
There are a great deal of resources and online guides / media available for Google Classroom. Within each of our own Google Classroom Base Classes pupils have access to Google Classroom guides, as well as the ability to ask their teachers specific questions about their individual Google Classrooms.
However, there may be times where you require other information about Google Classroom. Google themselves have their own Classroom Help page and this can be accessed here:
A good starting point might be this page within Classroom Help: