what is a corequisite
About prerequisites and corequisites. A prerequisite is a requirement that must be met before you take a course, while a corequisite is a course that must be taken at the same time. Some requirements may be taken as either a prerequisite or corequisite.
Askalon Senior Member English (US) A prerequisite is a course you need to have taken and already completed prior to taking whatever course you're registering for. A corequisite is a course you have take simultaneously with the course you're registering for. I.e. you have to register for both the course you want to take and the corequisite. Sep 11, 2011. #5.