You can download the notes and print them out for free on your own. 

However, if you would like to get printed copies of the notes sent to you or want to order textbooks, you can do so using the Supplemental or Printed Materials order form found inside your course.

You can find this form as a lesson in the Downloads section.  Each course may be organized differently but you can find this most likely in the last lesson in the Downloads section of your course.

If you need help navigating the course, please watch the How To Video in the Introduction section of your course.