Ключевые слова: academic, adolescent, attentive, backpack, blackboard, books, boy, classroom, classwork, concentration, desk, determination, education, educational, environment, focus, focused, indoors, informative, instructional, introspective, jacket, knowledge, learning, lesson, organized, perseverance, portrait, pupil, scholastic, school, schoolwork, sitting, student, study, teaching, teenager, thoughtful, young, youth, youthfulness,