Everyone learns the number one rule about triangles in high school: the angles of a triangle add up to 180 degrees. But did you know that sometimes they don't? Triangles are much more interesting than ...

This tip for improving your SAT score was provided by Jake Davidson at Veritas Prep. Geometry is one of the toughest subconcepts of the SAT math section for students to master. There are a few reasons ...

Counting will get you nowhere. Try a little combinatorics instead. By Kenneth Chang A couple of weeks ago, I wrote about a viral math problem — 8÷2(2+2) = ? — that drew the disdain of many ...

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