In the past I've used one large binder with my whole caseload divided by student. It's super big and bulky. I eventually lost track of things and started to wing it by the end of the year. I'm looking for new ideas..maybe one binder per student? How do you organize and keep track of your data to make sure that it's consistent and that progress markings aren't nearly as stressful? I love preloading a lot of the work so I'm "set" for weeks or even months at a time (if that makes sense). It might also help to know what your set up is like and how much space you have... resource room...closet...cart?