Ключевые слова: activity, addition, arithmetic, babies, backgrounds, block, buildings, caucasian, child, childhood, children, concepts, construction, count, cute, education, elementary school, expression, family, female, games, girl, grade school, homework, horizontal, ideas, interest, isolated, knowledge, learn, leisure, lesson, lifestyle, little, lying on the floor, mathematics, one, people, person, playful, playing, preparation for school, preschooler, schoolgirl, smart, student, study, toddler, toy, training, white,