When you have created an assignment, the settings can be changed.
Please note, however, that if students have already submitted something against this assignment these submissions may need to be deleted from the grade center before some settings are changed.
Firstly, make sure that you have edit mode turned on. You can learn more about edit mode here.
Move your mouse over the assignment that you want to change and a small grey circle icon will appear to the right of the title.Click on this circle icon to show the options for this content item and select “Edit”.
This will take you to the edit screen for your content where you can change the various content elements (dependent on the type of content).
When you are satisfied with the changes which you have made, press the “submit” button.