- On your course page, select the Settings tab from your Course Management Tabs.

 - In Settings, scroll down and select
        the Course
            Format dropdown.
 - For Hidden Sections, select Hidden sections are completely invisible from the dropdown.

 - With that selected, proceed to the bottom
        of the Settings page and Click Save and
        Display.
 - To ensure this setting is working as intended, switch your role to Student View.
