THE WASHINGTON POST — Schools evolve, just as natural organisms do. One of the newest species is the early college high school, or just early college for short. It is an increasingly popular way to smooth the awkward high-school-to-college transition that has inflicted on unready teenagers such annoyances as scary SAT tests and slick college brochures. Why not provide, as early colleges do, a place for ninth, 10th, 11th and 12th-graders to become college students while they are still in high school?