Ключевые слова: aged, apple, chalkboard, child, childcare, class, classroom, clever, draw, drawing, eat, education, educational, grandfather, grandson, helping, homework, indoor, intelligent, kid, knowledge, learn, learning, lerning, lesson, mentor, old, pen, people, preschool, primary, professor, pupil, retirement, school, schooling, science, senior, study, studying, talking, teach, teacher, teachers, teaching, think, thinker, thinking, toddler, tutoring,