What are Credit hours?
A course credit (often credit hour, or just credit or "unit") is a unit that gives weighting to the value, level or time requirements of an academic course taken at a school or other educational institution. Some colleges will also allow college credit for work experience. While the student may not technically receive credit hours, they may be allowed to skip pre-requisite courses and enter advanced classes if they can show proficiency at the basics of the subject. Some schools also allow students to "test out" of a prerequisite or entry-level class, permitting them to complete their course work in less time and go straight to advanced classes.