Homeschooling through Chronic Illnesses

If your state still mandates studies in difficult times like this, here are a few options:

Khan Academy will help with Math. 

As for science, get them to focus on a project like inventing something together. Hopefully something that will help their sibling or family cope with the situation. At this stage, they can just focus on brainstorming and research. 

For language arts, have them write ✍🏻 a life story about what is going on right now and how they feel. Try to encourage descriptive words and metaphors. They can also read books that relates to this situation. One of the books I would recommend is Good Morning, Holy Spirit by Benny Hinn. There is a story at the beginning about being in a hospital. It's on Google as a free PDF.

History - read books on when certain chemotherapy and other inventions were made and how certain people in the past fought cancer and lived.