If an instructor allows observers to edit course pages, you can edit a page in a course.
Pages is designed to open to the front page for the course, if there is a front page selected. To select a page from the Pages Index, click the View All Pages button.
Click the Edit button.
Note: You will only see the Edit button if you are allowed to edit the page.
Edit content on the page using the Content Selector . You can also edit the content using the Rich Content Editor  or switch to HTML view to edit .
Note: Depending on your course setup, the Files tab may not display in the Content Selector.
You can notify users that content has changed by selecting the Notify users that this content has changed checkbox . Click the Save button .