Many adults appreciate the power of computers and the internet, and think that children should have access to them as soon as possible. Yet screen learning displaces other, more tactile ways to discover the world. Human beings learn with their eyes, yes, but also their ears, nose, mouth, skin, heart, hands, feet. The more time kids spend on computers, the less time they have to go on field trips, build model airplanes, have recess, hold a book in their hands, or talk with teachers and friends.