Most UBC undergraduate courses amount to 3 hours of class time per week. This does not include the number of hours you may spend on assignments, projects, tutorials, or lab work outside of lectures. Classes that are 3 hours long are referred to as 3-credit classes or 3-credit hours.
Generally, 100-level courses are first-year courses, 200-level courses are second-year courses, and so on. 500- and 600-level courses are considered graduate-level and are only available to undergraduates with the permission of the department and Faculty of Graduate Studies.
Some courses require prerequisites which are courses you must have completed before enrolling in a specific course or program.
Similarly, corequisites are courses you are required to enrol in at the same time as another course or program, or complete beforehand.