Ключевые слова: action, baby, baby development stage, ball, belly, bodysuit, boy, brain development, care, carpet, caucasian, childhood, crawl, crawling, crawling baby, daughter, development, family, first, floor, game, girl, happy, home, house, human, indoor, infant, interactive play, joy, kid, kindergarten, learn, little, modern, motherhood, newborn, nursery, nursery room, one, person, play, pursuit, room, sensory experience, sixmonthold child, small, stomach, toddler, toy,