Canadian universities don't really have entrance requirements, and they have a very low workload. If you have an 80% average, you can get into most Canadian schools for most programs. The 1st year honors mechanics course at Cornell is more work than an entire semester's work at in 1st year Canadian university. Cornell's 1st year Engineering Chemistry course covered more than 4x the material covered in 1st year chem at Queen's University in Canada (the course has since been removed).

But you'll have to realize that even between top American schools, course load and marking differs. My friend went to Oxford from Cornell, with a bunch of students from other top American schools for some program. I remember him saying how he partied all day while the others were complaining it was so hard. He described it like this: "At Oxford, if you're asked whether you'd rather do a problem set or get beaten by a stick, you'd take the problem set. At Cornell... you'd definitely take a moment to consider." I don't want to get into grade inflations/deflations here though. Feel free to contact me if you'd like to know.

Canadian universities also take 90% as the general A+. When he says he's getting an A+, it means he's getting somewhere between 90 and 100%. I don't think I can emphasize well enough, how easy this is. For one Human Resources exam, I studied 30 minutes the night before after getting drunk, and wrote the exam the next morning hung over. I got a 94%. That's the only reading/studying I ever did for that class. This isn't unique to this university either.

I personally usually just need to read, listen, or work through something once to get it, depending on what the material is. However, his methods make logical sense I guess.