How to use existing worksheets
To make it easier to create new worksheets, we can use existing ones as a template. We can duplicate our own worksheets and worksheets not created by us and modify everything we need to create the new one.
Duplicate our own worksheet
To duplicate our own worksheet we must do it from the worksheet page, fitst find the worksheet in the My worksheets list. Once we find it enter in the worksheet page and to duplicate we must click on the More actions menu and select the option Duplicate worksheet. This will show a window where we will input the name of the new worksheet. Once we click on Duplicate, the new worksheet will be created as a draft, which we can modify and publish at any time.
Copy other teachers' worksheets
If we want to duplicate worksheets not made by us we can do it from the worksheet view, clicking on Copy worksheet to my account on the More actions menu. A window will appear to input the title of the new worksheet. When clicking on the Copy button, the worksheet will be copied in our account as a draft.
In this case, as the original worksheet is not ours, we can only publish the new one as private.