A fantastic digital platform which allows sharing of lesson resources both from and to the teacher. This is now so prominent that the majority of learning based apps have a function where they can share with google classroom. As a school we now automatically link all of our classes to it so it now automatically updates with your classes and the students in

Google Classroom: Quick Tutorials

You have joined a class that you don't teach and constantly get messages from it

If you want to make student work but don't want them to get notifications late at night