Explanation of grades - settings

The function "Explanation of grades" is normally not used, since most teachers are satisified with just writing comments on individual questions. This function gives the student an explanation of the final result.

By Enabling administration of Explanations (1) you get additional options (2). Here you can make explanations mandatory, allow individual graders to post explanations (explanations can only be posted once per student), and set a deadline for when explanations must be written.