Ray Li's Teaching
- In Summer 2017, I was an instructor at the Math Olympiad Summer Program.
- In Fall 2015, I was a teaching assistant for 21-127 Concepts of Mathematics at CMU.
- In Summer 2012 and 2014, I was an instructor at IDEAMATH, where I taught 3-6 hours a day over a total of 6 weeks.
High school Olympiad handouts
High school Pre-olympiad handouts
I have contributed problems to a variety of competitions, some more official than others.
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