There is documentation about the use of prerequisites in Modules in order to prevent accessing another Module until specified assignments/activities are completed. However, I found that using prerequisites are very useful for students even when not needed to unlock any Module. Since it will check off each item/activity as they are completed, it gives students a useful display of what they have done and still need to do. It also puts each item on the "To-Do" list. Basically, just don't make them requirements to unlock any Module and it works well. You can also see the progress made by any student.
I use it to make sure that students have viewed all documents/videos within the Module as well as assignments to be submitted. I have gotten extremely positive feedback from my students who appreciate the reminders of what they need to do and what they have already done.
As an illustration, I have added a video attachment that I made for my students in one course that explained this.
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