What U, M, and C mean. U level courses are designed for university-bound students, M level for students heading to either university or college, and C level for college pathways. For a university admission average, only Grade 12 U and M courses count — C level courses do not, regardless of the mark. Why M courses matter for your Best 6. Because your admission average is your best six Grade 12 U/M courses, M courses are a legitimate part of your Best 6 — and they're often a smarter fit than a U course you'll struggle in. An M-level course you ace beats a U-level course you barely pass, for both your average and your stress. The prerequisite trap. The catch: required courses for a specific program must usually be U level. Engineering wants U-level calculus and physics. If a program requires U-level courses, an M-level equivalent won't satisfy it — even though it can still count toward your Best 6 elsewhere. Always check a program's specific prerequisites before choosing your courses. Where the confusion actually hurts. The common failure is a student who takes a C or M course assuming it counts toward a university average and discovers too late it doesn't. The fix is simple: check every Grade 12 course's level before you pick it, and keep a calculator's eye on whether it can enter your Best 6. The Grade Tracker lets you mark each course's level so your projection only counts what a university would.