How do I edit course Pages?
The Instructor can create Pages that are editable by everyone, including Observers.
Edit a Page
Use the Rich Content Editor  to format text, embed external links, YouTube Videos, and Flickr images. The Content Selector  in the Sidebar will give you access to all publicly available Files and Images from course Files. You can also quickly link to existing pages and past Discussions. When you are finished editing the Page, click Save Changes . Canvas saves a new version of the page each time a user saves, so no changes will ever be lost.