Ключевые слова: back to school, background, black, blackboard, blue, book, braid, calculator, chalk, checked, child, classroom, compass, concept, cute, desk, discipline, doodle, education, formula, girl, hipster, homework, learning, little, man, math, mathematics, notebook, paper, pen, pencil, playful, rebuke, school, schoolkids, shirt, sign, sitting, smart, student, studio shot, studying, symbol, table, teacher, wisdom, young,