...
Export/Import - Use "Export Course" to save all or parts of the course structure. Exporting does not include student activities or student roster. This feature only exports the information created in the course and gives the option to select individual content areas to be exported into an existing course. The exported course will be saved as a .zip file and may be imported into a different course. For more information, go to Export A Course and Import Course Content.
How do I make my course available to students?
By default, course are initially unavailable to students so that faculty can revise a course as necessary without students seeing all of the changes. Only once you have completed changes and are ready for students to get in to the course will you make the course available to students. This is something you must do each semester. For the easy steps showing how to do this go to Make a Course Available.
Student FAQ
Why can't I access all the courses for which I am registered this term?
...