Zooniverse has a list of remote learning resources

[conuly]

https://blog.zooniverse.org/2020/03/18/zooniverse-remote-online-learning-resources/

They also have a page for service hours: https://blog.zooniverse.org/2020/03/26/fulfilling-service-hour-requirements-through-zooniverse/

(Thanks, bibliofile. Anybody has any more resources for free or at least affordable, let me know.)

There are more distance learning resources here, quite an extensive list: https://www.cnet.com/how-to/distance-learning-online-education-classes-for-every-age-and-grade/