Understood.org helps families and educators start the 2020 school year strong with these distance learning resources.
Facing History and Ourselves offers a resource called Back to School 2020: Building Community for Connection and Learning. In it, you will find suggested routines and activities, a recorded webinar, guides for remote book clubs, and more.
If you would like to see or add to a growing collection of "Back to School" links, you might be interested in the Viewpoint group on Diigo, a social bookmarking site. It does require a free subscription.