Students can use Code.org to work on Computer Science. We use it in class but I have established another unit for the students to work on while away. Here is a description from Code.org regarding the unit:
"CS Fundamentals offers two self-paced express courses. Both are designed for situations where the teacher is not able to play an active role in engaging students. Express courses do not have unplugged lessons and instead focus on covering content from A-F counterparts in a way that can be delivered without a teacher."
When logging in use our class code: HTSZFJ (the login with the class code is on the right side of the screen)