Bees apparently have a grasp of basic math, including addition and subtraction, a new study has discovered. The study, published in Science Advances, reveals that bees have incredibly powerful ...

Jake Scott, also known as 2 Pi, is a math teacher at Montgomery Blair High School who engages his students by rapping about triangles and theorems. (Astrid Riecken/For The Washington Post) ...

A version of this article appears in print on Aug. 27, 2019, Section D, Page 3 of the New York edition with the headline: How Many Triangles? Count on Math to Help.