When you add requirements to a module, students must complete all requirements within one module before moving to the next module. You can require students to complete all requirements in the module, or have them choose one item to fulfill a specific requirement.

Note that you cannot add requirements until you have added module items: you can add content items such as assignment types, pages, and files; text headers; external tools; and external URLs.

You can choose to allow students to complete requirements in any order, or you can require them to move through the module sequentially. A requirement to move through module items sequentially relates to the order items are listed on the Modules page, not the order displayed in Module Settings. If you have multiple iterations of an module item, you can set different requirements for each item.

Module requirements are displayed in the order that they exist as module items. You may need to reorder module items so that the requirements are set correctly.

Depending on the module item type, requirements include up to five options:

View the item: Students must view the item.
Mark as done: Students must mark the module item as done before they can progress to the next item.
Contribute to the page: Students must post a reply to a non-graded discussion or contribute content to a page (make sure students are allowed to edit pages in the course).
Submit the assignment: Students must submit an assignment, post a reply to a graded discussion, or submit a quiz. (Canvas does not allow you to manually enter a grade to fulfill this requirement; a submission must be made by the student.)
Score at least: Students must meet a minimum submission score. With this option, an additional field appears where you can enter the minimum score that students must earn. This option is available for all graded assignment types.

Please note that depending on the type of restriction you (the Instructor) might have to do something first; such as grade the assignment before they can move on.

Here is a link to the Canvas Guide for more information