OR since subs usually sub multiple times during the year, find the lesson plan book that is on the teacher's desk and read it? I have folders labeled for each day but if I had to be out for an emergency that I could not control there might not be a way to leave a note stating "the lesson plan book is to your left on my desk. The folders for the day are behind in you in a black filing cabinet on top of the desk behind you" SOME subs (not all ) complain because things aren't right there within inches of their reach. I've been a sub. The key is to get there early enough to scope out the classroom. Look around, discover, read the plans and find the items.