Math teacher Emma Chiappetta uses a three-round exercise to help students not only recognize their errors, but also generate ...

No parent, teacher, adviser or other responsible educator would ever recommend, much less require, a student to take a course ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. A set-off clause is a legal clause that gives a lender the authority to seize a debtor's ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

All of modern mathematics is built on the foundation of set theory, the study of how to organize abstract collections of objects. But in general, research mathematicians don’t need to think about it ...

A long-awaited definition is expected to refer to “anti-Muslim hostility” as the government prepares to move away from the previous wording of Islamophobia. An independent working group, led by former ...

Answer: 888 + 88 + 8 + 8 + 8 = 1,000. This is the kind of math riddle you can work out with times tables, or by simple logic. First, get as close to 1,000 as you can (888). From there, it’s easy to ...

The original version of this story appeared in Quanta Magazine. At the turn of the 20th century, the renowned mathematician David Hilbert had a grand ambition to bring a more rigorous, mathematical ...

Picture a tune that plays with your mind. It does not go straight but skips and flips in ways you do not expect. That is math rock. It avoids common music paths, which makes it feel fresh and smart.

Our guide to all things strategy, from “adjacency expansion” to “value stick.” by HBR Editors What is strategy? This question may be familiar if you’re a seasoned HBR reader: It’s the title of a ...

In 1964, Justice Potter Stewart said of trying to define obscenity, “I know it when I see it.” But a new bill sponsored by Sen. Mike Lee would — for the first time — clearly define obscenity under ...