Ключевые слова: adult, boy, caring, caucasian, chalk, chalkboard, child, childhood, children, class, classroom, cute, education, female, happiness, happy, indoors, kid, learn, learning, looking, male, mathematics, maths, one, people, person, positive, positivity, pupil, school, small, smile, smiling, standing, student, study, studying, teach, teacher, teaching, think, thinking, tutor, two, woman, women, write, writing, young,