Use 'semantic gradients' to turn vocabulary study into a shared thinking activity that explores the subtle differences ...

Children learn language effortlessly and completely voluntarily. They learn new words miraculously fast. A teenager masters about 60,000 words of their mother tongue by the time they finish high ...

The human mind is astonishing. We can think through the toughest problems and find the smartest solutions. We can compute answers to the toughest mathematical questions. And we can apply our creative ...