“With the six-year-olds we’ve looked for sticks and compared length, which ones were shorter and longer,” she says. “In science class, with the older children, we’ve used the sledding hill to learn about friction by comparing different ways of getting down—for example, with a wax cloth, a plastic sled, shoes with grooved soles, and so on. There really isn’t anything you can do inside that you can’t do outside.”
