Ключевые слова: age, art, babies, baby, back, backgrounds, backpack, beautiful, beauty, beginnings, blackboard, book, building, business, chalk, cheerful, child, childhood, children, classroom, color, concepts, education, elementary, eye, females, girls, green, hand, happiness, holding, industry, learning, lifestyle, mathematical, nature, office, people, person, preschool, school, schoolgirl, small, smiling, student, studying, teenage, uniform, wisdom, writing,