Discussions in Canvas are discussion boards that invite interactions between two or more people. You can assign discussions to the entire class or to smaller groups of students and optionally add grades for students' participation.
You can use discussions to pose and answer questions for the class and facilitate class-wide conversations.
Visit the Canvas Guides at https://community.canvaslms.com/t5/Instructor-Guide/tkb-p/Instructor#Discussions
Discussion Redesign Feature
Learn more about the Discussion Redesign feature which includes an updated design workflow with minor usability enhancements.
Learn How to Create a Discussion
This playlist will show you how to create a discussion and how to enable the new Discussion Redesign feature.