Keith Perkins, foreground, works through an algorithm for calculating ladder rung spacing in Linn-Benton Community College’s math for welders class. Credit: Jan Sonnenmair for The Hechinger Report The ...

Can you predict whether a passenger would have survived the sinking of the Titanic based on factors like gender and income? How do you know if a mushroom is poisonous or safe to eat? What separates a ...

The original version of this story appeared in Quanta Magazine. If you’ve been making the same commute for a long time, you’ve probably settled on what seems like the best route. But “best” is a ...

Students in Melissa Williams' kindergarten class at the Westminster School in Atlanta, Georgia, practice connecting quantities to written numbers — a key part of number sense. Credit: Holly Korbey for ...