My children will be home for a few weeks (at least) while schools are closed due to the Coronavirus/COVID-19. What are some good strategies or options for helping them continue to learn while at home?
This is a question that would not normally be on topic at this site, but due to the likelihood it affects many of our community as well as worldwide, it is being posted as a wiki-question. Answers are welcome to include recommendations for websites/software/etc. that would normally be disallowed, so long as any relationship between the poster and the site is disclosed, and the answer is a good answer beyond simply a link. Explain why the resource is helpful and how to make best use of it.