Google Classroom is a web-based learning environment. When logged into Google Classroom, students can collaborate with their peers and teachers. Google Classroom offers a digital safe space for students to view class announcements, access posted course content, view posted assignments, and turn in completed work.
Parents can access their child’s teachers’ Google Classroom in one of the following ways:
From the school-issued Chromebook, ask the student to log in and launch the Google Classroom App.
From any computer with internet access, click this link https://classroom.google.com and have the student login with their GPS Google Apps for education username and password.
As a guardian, you must receive and accept an email invitation before you can receive email summaries. Only teachers and administrators from your student’s school can send these invitations. You have 120 days to accept an invitation before it expires.
a. The teacher or administrator emails you an invitation for a particular student.
b. In your email program, open your email invitation.
c. Click Accept.
If you’re not the guardian, click I’m Not The Guardian.
You can choose the frequency of the emails, such as daily or weekly.
You can unsubscribe or remove yourself from Classroom at any time.
Guardian email summaries include:
Missing work—Work that’s late at the time the email was sent
Upcoming work—Work that’s due today and tomorrow (for daily emails) or work that’s due in the upcoming week (for weekly emails)
Class activity—Announcements, assignments, and questions recently posted by teachers
See more details here https://support.google.com/edu/classroom/answer/6388136