If you've created a Prezi and want to include it in your course, great! You can do this by adding it to a Multimedia lesson.
What you'll want to do is get your View link first, here's an article from Prezi on how to get that. Once you have it, you'll want to add /embed at the end of the URL, then add it directly to the URL field on the Multimedia lesson.
For example, here is a sample view link for a Prezi with /embed added at the end. The URL below is what you'll need to add to the view link in the Multimedia lesson.
Then, click save, and you'll be all set!