Go to the Tasks tab in your class

Click the more menu (3 vertical dots icon) at the top-right of the task and select Duplicate task.

Select which class you want to duplicate the task for and click Duplicate.

You can duplicate the task within your own class or a class within the same subject.

The contents of your duplicated task will be pre-filled in the task editor. You can make any updates or adjustments to tailor the task for your new group of students.

You can now save, schedule or publish your task.