A general introduction to visibility, and how to control the visibility of various parts of Myplace. Also known as "Students can't see their grades".
You can use the matrix on Relationship between Activity & Grade Visibility to see what effect a change to either activity or grade visibility will have on the students ability to see their grades.
How to hide and release grades to students.
This support page is an explanation of how anonymous marking will affect grade visibility for the student.
This support page is an explanation of how marking workflow may affect grade visibility for the student.
This support page describes how to control the visibility of a grade item in the class gradebook.
Activity visibility and grade visibility are linked together, and it is important to understand how they work in relation to each other to manage what the students may see in their assignment and gradebooks