Here’s a scary scenario: You’ve been put in charge of air traffic control at Newark airport near New York. You need to make sure every plane can taxi between the runway and its gate without hitting ...

In just three pages, a Russian mathematician has presented a better way to color certain types of networks than many experts thought possible. A paper posted online last month has disproved a ...

Inside: Christmas Count and Graph iSpy Printable for Kids Need a holiday math activity that actually keeps preschoolers engaged AND learning? This Christmas Count and Graph printable is perfect for ...