One of the greatest features of Canvas is the ability to use media to give feedback, which has the potential to speed up the grading process, improve faculty-student relationships, and encourage students to act upon feedback. Screencast videos can be especially helpful. It brings a "show-and-tell" element to grading and feedback that is easy to implement and effective for students to learn.
I am wondering if anyone in your institution is using screencast videos (produced with such apps as Explain Everything, Jing, Screencast-o-matic, Camtasia, etc) regularly to give feedback to student assignments. If you do, I'd love to form a group about this topic. If anyone wants to learn how to do it, let me know as well (firstname.lastname@example.org). Thanks.