Step 1 - Go to the gradebook

In the class you want to use mark codes for, click Gradebook setup in the Class Administration block to open the gradebook setup page.

Step 2 - Create a new grade item

This will contain the list of possible mark codes, and you will set it to be the mark code you want.

Just click Add Grade Item at the bottom of the screen.

Question: do mark codes need their own category? More generally, can marks returners see grade items that aren't in any category?

Go with mark codes hidden in Administrative for now.

Step 3 - Name the grade item

This is what the marks returner will see, so name the grade item Mark Codes.

Step 4 - Select scale as the grade type

Drop down the menu and select Scale.

Step 5 - Select Mark Codes as the scale

REQUIRES IMAGE

Step 6 - Set the mark codes grade item as hidden

Check the box to set the mark codes grade item as hidden. This is so students will not see it.

Step 7 - Save and return

You can now choose the grade category the marks return grade item will appear in. The Administrative category is a suitable place. Then click Save changes and you will be returned to the gradebook setup screen.