Gmail in the classroom

Generally, I have an idea on how to use the computer efficiently and the basic features of Gmail like sending and receiving e-mails.  As a sub-teacher with limited knowledge of how to use Gmail classroom, this course has added in-depth constructive information that allows me to understand how the Gmail in the classroom works. On the other hand, what the regular teacher is talking about in her lesson plan when instructing the students to look for an assignment in the Google Classroom. I have learned a lot from the course on how to communicate with the others, post any information for groups, and get feedback. Moreover, the students or workers can share  one document to work on at the same time using Google Gmail