Couple of things to consider:
~Yes, some teachers have specific requests for Binders. We find that teachers are often wiliIng to work with systems that WORK for students. We suggest you send a letter to the teachers explaining why this system works better (ie: Only one place for students to keep items.)
~With traditional block schedules, most students find it easier to have one binder for each day. BUT if your school has a non-traditional block schedule or if your student just wants one binder; we recommend the new double Z Case It.
~The Five Star Flex is not large enough for all classes. Your HS student will need two.
~Our students tend to need a stronger folders to hold up for the year. We recommend the heavy duty folders for which ever binder you decide to have for your student.