This year I've dropped paper printouts and have a second Bible, the Lecture Bible, for class. It's the same as the Regular Bible, but new, i.e., a new copy of the same NAB edition. I only mark in it what will be used in class. Here it is opened to Isaiah 53, part of the Isaiah-through-Malachi classes:
First, notice the numbered stickytabs at the top: those are the passages for this class, numbered in the order that I'll refer to them. If I fumble around more than 5 seconds to get to the next passage, the kids start to zone out, hence the idiot-proof numbers. There are 10 total tabs for this class; I arrange them so I can see the next number if possible. Tabs at the bottom are from prior classes; I will reuse them at least once. In the meantime they are out of the way, but can still be referred to.
Also see how tidy this page is: highlighting is limited to exactly what I'll be reading during class. Only what's relevant, and what we have time for. This page in the Regular Bible is a mess: good for preparation, bad for class.
With these numbered stickytabs on clean pages I'll have at least one full 55-minute period of smooth teaching and discussion, and if we run over (as we did this year), we simply continue in the next period.