The Course Menu may be hidden to increase the viewable area of the main content frame within your course. This feature may be helpful when accessing areas of a course where you need a larger viewable area to see the content (e.g., Grade Center, Discussion Board forums, Blogs, Journals, etc.). Once hidden, the course menu can be shown again at any time.
Follow these steps to do it.
To show/hide the course menu, click on the show/hide course menu (arrow) button on the middle right-hand side of the main content frame. This button acts like a toggle. Click on it once to hide the course menu. Click on the show/hide course menu button a second time to show the course menu again.
Note: Hiding and showing the course menu is course and user specific. Individuals can hide a course menu within any given course, while still being able to view the course menu within other courses.