I am not a teacher but it sounds like you will have access to anything from the course such as text books and things of that nature except materials that were submitted to the teacher for a grade. Such as tests or any papers that the teacher actually placed a grade on and kept for their records. I hope this helps and maybe an actual teacher will leave you a more definite answer on this.

Hello Ylena, Rob is correct - you have access to all materials but not anything for which the teacher will give you a grade. This is quite common with online courses - especially some which have free and paid options. hope this helps Bob

I think it means "quizzes and tests". These are kept confidential until given to you as part of a paid course perhaps. Giving you copies of these in advance would defeat their purpose of evaluating what you have learned.