Don't worry about "opening your mouth" at every school I've worked out, there is a policy in place or teachers are required to have a policy about make-up work. Generally, the rules where I've worked it that if it is an excused absence, you HAVE to let the child make up the work. If it is unexcused you do not. So, we all need a system to let the kids know what they missed. In reality, they aren't likely to do well on this make up work since they missed the lesson. I have a wipe-off calendar where I write the hw for the day and so when students return, they check the calendar. Other teachers have a binder (maybe with a calendar in front where they note the page numbers) and in the binder are the extra handouts/worksheets. If students can't do the work because they missed the lesson, they can come after school to see me, or can go to our after school homework help. I find that very few students actually do this, so it isn't like I'm inundated with students after school. I have to have it available to students, though, and some do take advantage. I rarely make up a new assignment for a student, with a few exceptions. If a student was out for a week or more and we read a story and wrote an essay, I might assign a different essay on a previously read story.