Four-year-old John Kaykay is a serious and quiet boy—“my thoughtful one,” his dad calls him. When the official greeters at the front door of the McClure early-childhood center in Tulsa welcome him with their clipboards and electric cheer—“Good morning, John! How are you today?”—he just slowly nods his small chin in their direction. When he gets to Christie Housley’s large, sunny classroom, he focuses intensely on signing in, writing the four letters of his name with a crayon as his dad crouches behind him.
