Make Google Classroom Email Folder
This will move Google Classroom messages to a folder automatically, keeping your inbox clean.
Open Gmail (Log in if prompted)
Click the Settings icon in the top right area of the GMail window
Click Settings
Select the Filters and Blocked Addresses tab
Click Create a new Filter
In the From field, enter "@classroom.google.com"
Click Create Filter
Check Skip the inbox
Check Apply the label
Check Never mark it as important
Check Also apply filter to matching conversations
Click Choose Label on the Apply the label line and select New Label
Enter the label name Classroom
Click the Create button
Click the Create filter button
The filter will be created and all of your messages from google classroom will be removed from the inbox and placed in the Classroom label. It will take a few minutes for the messages to move. Once the move is done, you will see the unread messages in your Classroom label. Click the Classroom label to see those messages.