Here are the handouts I’ve written for talks at various math camps.

Canada Winter Camp:

Canada EGMO Training:

York University CMS Math Camp:

UTS Senior Math Club:

For other math contest handouts, I recommend:


I was also an OTIS instructor for a few years. However, I no longer tutor students — teaching is fun, but time-consuming. I still recommend OTIS to any high school students trying to improve at math olympiads (but you should know that having a tutor is neither necessary nor sufficient to do well, and I think the practice you do when no one is around to teach you is far more important).