NEWPORT NEWS, Va. — Delores Spencer, now 88-years young, is a retired mathematics teacher. She started teaching in Newport News in 1958 and retired from the school system 29 years ago, but that hasn't ...
Back in 2019, Po-Shen Loh—an associate professor at Carnegie Mellon University and national coach of the U.S. International Mathematics Olympiad—taught the world a new way of solving quadratic ...