Hi @Kellychris2,
You may not realize this, but you have posted your question to the global community of Instructure product (like Canvas) users. While we can offer a lot of advice and answer a lot of questions around Canvas, we don't have any access to your exact Canvas course/account. Whether materials are available after you complete them really depends how your school/institution and teacher have configured things. I'd suggest reaching out to your teacher first to ask about this, as they'd probably be the ones most likely to control past modules in a course. If you mean past courses and not materials within a single course, reaching out to your school/institution Canvas team (usually in an eLearning / IT Digital Education department) may get you the best answer.
I hope this helps a bit!
-Chris
