Home > Welcome to Moodle > Course Settings Page > Completion Tracking (tags next to assignments) > Activity Completion Report
This report will show you which activities your students have completed, as well as let you manually toggle the completion status of assigned work for students.
NOTE: The report you access through the Course Completion Status block looks similar to this report, but it will not allow you to manually change the completion status.
These steps require that you have Completion Tracking enabled and applied in your course.