Professor Raúl Rojas has published a book about how symbols have been used throughout history in mathematics. The work was translated into English this year.

Enter Plato’s Closet in Poughkeepsie, New York – the fashion equivalent of finding a twenty-dollar bill in your winter coat pocket, but multiplied by an entire store. The concept is brilliantly simple ...

Helping students to develop math fluency takes more than just flash cards. It requires teaching them how to think about ...

"No one should have to spend a fortune on a lawyer or hours trying to figure out what went wrong on their taxes when the IRS ...

A dad was reviewing his son’s math homework assignment when the unexpected appearance of two words, scribbled in pencil, ...

The @ symbol can also appear in regular formulas outside of tables when Excel thinks you're trying to reference a single value from a range. If you see it pop up unexpectedly, it usually means Excel ...

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