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.

Discover how Norlen Melendez is transforming education through innovative teaching, leadership, and a mission to inspire ...

Learn how to sum time in Excel quickly, even when totals exceed 24 hours. Perfect for project tracking, payroll, and time ...

The asterisk (*) is the wildcard character that represents any sequence of characters, including when there are no characters at all. It’s the most flexible of the bunch, since it can replace any ...

Learn practical HYPERLINK tips, from dynamic sheet links and navigation buttons to XLOOKUP row jumps and tidy anchor text for client reports.

Tools like Excel and Google Sheets are ubiquitous these days, and learning how to use them more effectively will quickly ...

Have you ever followed a YouTube tutorial, carefully copied an Excel formula, and hit “Enter,” only to be met with an error or baffling results? It’s a ...

The simplest way to add an apostrophe before a date in Excel is to type it directly before the date when entering it in a cell. This method works best when you’re dealing with a small number of ...

After years of declining test scores, the Maine Department of Education is introducing a plan to bolster math and literacy skills statewide. The department is taking a more hands-on approach than it ...

A simple looking grade-school math problem has stumped the masses. Can you solve it correctly? The simple equation shared by @BholanathDutta on X this week, who regularly posts brainteasers, read ...

The New York State Education Department is pushing new math guidelines, including a recommendation that teachers stop giving timed quizzes — because it stresses students out. The new guidelines also ...