Ключевые слова: auto, automobile, back to school, bus, cars, caution, child, childhood, children, clipart, concept, district, education, educational, elementary, flashing lights, front, going to school, grade, kids, kindergarten, law, motorist, object, outside, people, public, ride, road, route, safety, school bus, school days, side view, sign, signal, stop, stop sign, street, student, traffic sign, transport, transportation, travel, vehicle, waiting, waiting in line, warning, window, yellow,