Jillybean, I don't know about your state but where I live no non-law enforcement personnel or students can take a gun within a certain distance (I don't recall specifically -- maybe 150 feet?) of any school. With some of the school shootings I am not sure this is a great idea...perhaps certain instructors who have extensive training should be permitted a concealed weapon, but I don't think anyone should just be able to have a gun in the classroom.
I don't carry all the time, because I mostly have it for home protection, but I certainly want to be able to!