In the event you need to create a virtual class environment to connect with students synchronously, you can quickly add your Zoom Personal Meeting URL to your Canvas Course for students to access from a Course Announcement. The Zoom sessions will start when you join, and will run until you end the meeting. You do not have to update the link to start a new session. When you’re ready for your next class to start the same link allows the next group of students to join.
For more information, see here.