As an instructor, after you have created a page for your course, you can edit the page at any time.
By default, only instructors (teachers) can edit pages. However, you can grant permission to allow students or anyone to edit and contribute to the page.
In Course Navigation, click the Pages link.
Click the title of the page you want to change.
Click the Edit button.
Add and edit content using the Rich Content Editor .
To change the editing permissions for the page, click the Who can edit this page drop-down menu .
Click to Save any changes you make .