Ключевые слова: abc, autumn, back, black, blackboard, board, brush, calculator, chalk, childhood, classroom, college, computer, concept, education, elementary, eraser, glasses, globe, green, high, highschool, icon, institute, learn, learning, life, map, marker, messy, mouse, notebook, pen, pupils, school, schoolhouse, scissors, spiral, squadron, stationery, still, student, study, stuff, supplies, symbol, teacher, university, world, written,