Here are some resources for instructors looking to adapt their Winter 2022 courses to be online until Jan 24 (and robust in terms of when we actually do return to in-person.)
Course delivery in first three weeks:
In Math you *are* allowed to have synchronous lectures at the scheduled class times
For live meetings, use interactive tools (ask questions for students to answer in chat, use polls, Kahoot, etc) to engage students. If all you are doing is lecturing with no interaction, it might as well be a video.