The symbols we use every day have fascinating and surprisingly recent origins, explains author Joseph Mazur in his new book A few years ago friends and I were talking about the origins of written ...

Many students see the equal sign as a signal to calculate, rather than a symbol of equivalence. Here’s how to clear up that ...

Estimation, Eastaway says, is the key to getting a grip on math. You already do it all the time, but you don’t learn it in school as a distinct mathematical skill because math is supposed to be, well, ...