I have two children, one of whom is a son born on a Tuesday. What is the probability that I have two boys? Gary Foshee, a puzzle designer from Issaquah, Wash., posed this puzzle during his talk this ...

Research in mathematics is a deeply imaginative and intuitive process. This might come as a surprise for those who are still recovering from high-school algebra. What does the world look like at the ...

If a 6-month-old can distinguish between 20 dots and 10 dots, she’s more likely to be a good at math in preschool. That’s the conclusion of a new study, which finds that part of our proficiency at ...