What's the difference between discussion, chat, and announcements?
Discussions: This is the discussion board for your Canvas course. Discussion threads are a place for questions, conversation, ideas, and debate. Not everyone needs to be present at the same time to participate in discussions. You can read through a thread, follow the conversation, and add your own response when it works for you.
Chat: The chat area provides a space where class members can gather for real-time, text-based conversation. An archive is kept of all chat conversations, but to make the most of chat you should be present and active.
Announcements: Keep an eye on the Announcements area for updates and important messages from your instructor.