On the particular online co-working needs of mathematicians.
Yvonne Lai, Ray Levy, Help! I need to teach my course online and I’ve never done this before.
Terry Tao’s blog post attracts some interesting commenters making suggestions.
samjshah does a high school mathematics teaching roundup.
For bad internet
Richard Wong suggests how to record things for the bandwidthistically challenged which realistically includes many students and some teachers.. Teaching in the Time of Coronavirus, Part I, noting the importance of:
- posting your lecture notes online
- making lecture slides (and posting them online)
- recording your lecture
Math-friendly chat options
See online whiteboards.
Drawing input devices
See stylus input.
Running a conference
idk. But maybe MiniConf 2020 or similar software is a a start.