Margaret McMillian was a follower of Froebel's theory who believed that outdoor play improved children's health. She built an attached garden with climbing and swinging apparatus and included animals and birds. This allowed children to play freely, develop skills like climbing, and explore their environment. Her focus on health and self-expression helped children take their place in society. The garden encouraged independent play and creativity. McMillian's work showed the importance of open spaces for children to play freely and routinely structured times for meals and sleep.