Holidays bring celebration, rest and, for many families, long stretches of indoor time. For some, this means tabletop games quickly reappear on kitchen tables. Games provide opportunities for learning ...

A local tennis club has 15 members. The organizer wants every member to play the same number of matches at an upcoming event, ...

There are eight doors in front of you labeled A through H. Behind one of the doors is a prize. A guard is aware of the prize’s location but will only answer yes or no questions. What is the minimum ...

Here, count with me: 1, 2, 3, 4, 5, 6, 7, 8, 9, T, 11, 12 … Oh, what’s that? You write ten with “zero”? Fair enough. Zero, we have been told, is the ...

Teaching math to English learners in middle and high school requires a nuanced approach. Those students are often at very different places in their language development and in their academic grounding ...

Tristan rides his bike in the annual Iron Boy event in Lake Placid, New York. Due to mechanical difficulties, he cannot shift gears, but perseveres, nonetheless. The center of his pedal is 9 inches ...

In honor of April Fools’ Day, I offer the puzzling case of the Lesser Fool. In a fictional town, there lived an odd wanderer. People would present him with two amounts of money or goods and ask which ...