Ключевые слова: alphabet, art, back, background, blackboard, board, chalk, chalkboard, childhood, class, classroom, college, coloring, colors, colour, colourful, creative, education, elementary, grade, homework, illustration, information, language, learn, lecture, lesson, letters, material, math, notes, numbers, pencil, period, primary, quiz, reading, research, school, student, study, studying, symbol, teacher, teaching, wooden, work, writing, youth,