Rocky Point High School math teacher Jay Rand likes to challenge his students with a classic head-scratcher on the first day ...

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

Running out of money in retirement is one of the top fears of soon-to-be retirees for a reason. It is surely one of the ...

The infinite hotel paradox imagines a hotel with endless rooms that somehow runs out of space. Even when new guests arrive, ...

Scientists used CT scans to reveal the first accurate portrait of Egyptian Pharaoh Amenhotep. Jack Nicholson discovered that his “sister” was actually his mother after both had died ...

1. Fast and Slow Piles. This works well as a starting or closing activity. Students sort math fact cards into fast and slow piles. This visual way of tracking facts highlights which facts come ...

Changing the generosity of our grading system will not end the game of grade grubbing — it will just make the game far more toxic.

Using the 2 Stage Free Cash Flow to Equity, General Motors fair value estimate is US$85.19. With US$70.75 share price, ...

About five years ago, before he died, my father arranged to give a large amount of money each month to an ill sibling. This ...

Household debt just hit a new all-time high. Here's how to slash your high-rate card balances before they spiral.

OpenAI has gone wild with compute deals this year, committing to spend far more than its balance sheet can currently sustain. So who takes the fall if it can’t pay? It won’t be Altman.

As the next wave of Japanese stars come Stateside this winter, here's everything to know about the posting systems that fuel ...