Children across the Washington area headed back to school for another academic year.
Sept. 6, 2011 Christina Trimble, 5, checks out the scene on her first school bus trip to Key Elementary School in Arlington. The first trip on the school bus is the first step in many children's academic career. With quiet confidence, the kindergartener chose to sit in the absolute back seat of the bus — away from any other student, including her 8-year-old sister who is entering the third grade at Key Elementary. Jahi Chikwendiu/The Washington Post Buy Photo