@CherylPooler There are a few ways to use Canvas Studio media with Canvas assignments. If the media is something students should watch before completing some assignment task, you could embed it in the description via the RCE's Apps list. If you built a quiz for the video in Studio, you could make the submission type External Tool and select the Studio quiz so that students' results are their grade.
How do I use Canvas Studio through the Rich Content Editor in Canvas?
How do I post Canvas Studio video quiz results in the Canvas Gradebook?
