Two mathematicians have proved that a straightforward question—how hard is it to untie a knot?—has a complicated answer.

For years, a French mathematician searched for a proof that a gigantic number is prime. His method is still used 150 years ...

For decades, Congress has been the land of the permanent incumbent. Polls show that nearly nine in 10 Americans want term limits, yet every attempt to impose them has failed because Washington won’t ...

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

Deadline: White House” legal analyst Jordan Rubin answers your questions about the Supreme Court, Trump administration ...

Asking students to explain how they arrived at an answer is a powerful strategy for making a concept more memorable.

When Stacia was 21, she was struggling with severe depression. A stranger's simple question gave her safety during a time she ...

The COLA method can help identify whether you're operating on speculation, belief, evidence, or principle—and respond ...

Compounding is the quiet force that turns steady saving into exponential wealth creation. The Rule of 72 makes this concept ...

Simple interest is paid only on the principal, e.g., a $10,000 investment at 5% yields $500 annually. Compound interest accumulates on both principal and past interest, increasing total returns over ...

Looking for some help with today's NYT Strands? An extra hint and the answers are right here to help you finish the grid and ...

Russians in Minnesota find the Ukraine war both simple and complex Many are horrified by "Putin's war," but they realize those back home may not see it the same way.