Congratulations Team USA, all of whom are AoPS WOOT alumni, for their 1st Place win at the 65th International Mathematical Olympiad! Discover WOOT.

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As a parent, I think the lessons were very good because it explains the whys of the math rules and proves them. The structure of the lessons are good and sequential. As a student, my son said he learns a lot and it is fun. He learns a lot of math tricks or shortcuts. Thank you so much.