Discussions are at the heart of creating community in your course. Review the articles linked below to learn more about the Discussion feature in Canvas.
Discussions - General
How to Create a New Discussion
How to use Canvas Discussions (Instructors)
How do I view the rubric for my graded discussion?
Discussion Controls
How to Edit or Delete Your Own Discussion Post
How to embed an image to a Discussion using Kaltura
How to attach a file to a Discussion