For teachers: When a teacher is not feeling well, the last thing they wanna do is write sub plans. To get ahead of that, I highly recommend every teacher has an emergency sub folder, including seating chart, information about the students, the schedule, rules and expectations on the classroom, a map of the school, and of course, the actual lesson plan and handouts needed for the lesson! These should be plug and play lessons that could work anytime in the year and are still beneficial for students!