Even though "x" is one of the least-used letters in the English alphabet, it appears throughout American culture—from Stan Lee's X-Men superheroes to "The X-Files" TV series. The letter x often ...

Master factoring quadratic trinomials even when the terms look out of order. Math problems don't always appear in standard ...

Foundations of Algebra emphasizes computing with whole numbers and fractions, decimals, and integers; solving word problems with whole numbers, fractions, decimals and integers; solving basic linear ...

In September 2019, news broke regarding progress on this 82-year-old question, thanks to prolific mathematician Terence Tao. And while the story of Tao's breakthrough is promising, the problem isn't ...

The California State Board of Education voted to adopt a new—and much-debated—math framework on Wednesday, concluding a years-long process that involved three drafts, prompted hundreds of suggested ...