Ключевые слова: back, back to school, back view, background, big, black, blackboard, blue, canvas shoes, chalk, checked, chemical reaction, chemistry, clever, college, concept, doodle, education, equations, floor, formula, girl, high school, jeans, learning, long hair, math, mathematics, physics, quadratic, rear view, school, shirt, sign, smiling, standing, student, studio shot, studying, symbol, text, university, university student, wall, wisdom, wise, wooden, writing, young, youth,