The Set Up:
1. Go to www.classroom.google.com and click on the "Sign in" button.
2. Students can use either your Gmail ids or the school login credentials. See screenshot (inside the book)
3. The question feature is an interesting way to introduce a think / pair / share style activity in the class.
Pro skills:
1. Assignments with submission dates are automatically logged on the class's Google calendar. Click on the calendar icon to view it.
2. You can choose different types of comments in Google Classroom.
Class comments can be seen by everyone in the class. For instance, in the following case, its WordPress and SEO class, and the student is using class comment to ask for the reference materials.
Private comments are between students and the teacher and it can be used by both the teachers and students confidentially regarding their queries and feedback. For instance,