Two decades ago, the mathematician Moon Duchin spent her summers teaching geometry at Mathcamp, a program for mathematically talented teens. Campers contemplated notions such as how to prove whether a ...

Examining mistakes gives students a chance to discuss misconceptions openly and find new approaches to solving problems.

NEW YORK ― If Victoria has any secrets left, it's how to make the perfect pastel pink cosmo. The drink, mixed from bottles of fuchsia-stained Kettle One, flowed plentifully as guests arrived for the ...