Canadian GPA is done differently than American. I am also a 3rd year undergraduate at a Canadian university (McGill). Here, an 85-100 is an A (4.0), an 80-84 is an A-(3.7), 75-79 is a B+(3.3), 70-74 is a B(3) and so on and so forth. The number grading depends on what school you go to and whether you are in US or Canada. But generally, a B is a 3, an A is a 4, and so on. A 3.4 at McGill would be a mid B+(3.3-3.69 is a B here), but that would be a very high mark at this particular school.

Cheers