Ключевые слова: background, blackboard, board, books, caucasian, class, clever, college, copy space, dad, daddy, drawing, educate, educated, education, educational, face, father, grade, happy, helping, high school, homework, innovation, inside, knowledge, learn, learning, lesson, mature, old, paper, parent, preparing, school, schooling, science, september, session, sitting, smiling, student, study, success, teacher, teaching, text, think, tutor, university,