Ключевые слова: adolescent, asian, back to school, bearded, boyhood, boys, caucasian, cheerful, class, classmates, classroom, closed eyes, education, educator, embrace, emotion, excited, eyeglasses, girlhood, girls, gray hair, happy, hug, indoors, interracial, joyful, knowledge, laugh, look at camera, man, mature, middle aged, multicultural, multiethnic, people, pleased, positive, profession, school, schoolboys, schoolgirls, smiling, teacher, teen, teenagers, together, work,