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 ...

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 ...

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 ...

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 ...

Draw four lines beginning and ending at the gray points to break this square into pieces that can be rearranged into five identical squares. Show puzzle solution Bonus: Suppose you can use any number ...