Home > Welcome to Moodle > Course Settings Page > Completion Tracking (tags next to assignments) > Activity Completion: Marked Complete when Conditions are Met
Completion tracking must be enabled for this option to be available.
This feature is ideal for Forums, Assignments, Quizzes, and other interactive activities. It can also be applied to read-only resources to ensure a student views a file, page, URL, or book.
You may also consider using the honor system and letting students check off their own progress.