Some of my colleagues have asked how they can make it so that a particular assignment they have posted on their Google Classroom Stream can become a “recurring” task.
For example, you do not want to have to create a new assignment each week telling students to write in their journals. However, students often need reminders to get them started on their assignments.
Rather than re-creating an assignment, you can link to an existing assignment. Have a look at Alice Keeler’s blog post on how to complete this process.
http://alicekeeler.com/2016/02/01/google-classroom-link-to-an-assignment/