Barbara,
Standardization is being attempted in some states, like Florida, where the course naming and numbering system is made available for institutions to apply to have their courses recognized for equivalence and transfer of credits. It seems diversity in postsecondary classrooms has been with us for a long time. Academic Freedom and institutional differences are big parts of this. Even within the same institution there are often disparities among subject matter experts on class requirements.
Dr. S. David Vaillancourt