Love this idea! Math challenge of the week for grade math. A new challenge is posted every Monday and students have until the end of the day Thursday to try it. This is for middle school math, but the idea is applicable to any content area or grade level!
It took me about four or five years of my teaching career to figure out an efficient system for navigating make-up work. And as the technology got better, so did my ability to keep up with my absent students.