In 1907 Italian doctor, Maria Montessori opened a nursery where young children learnt independently, through practical work and playing with educational toys. The revolutionary teaching method soon spread around the world. Anya Dorodeyko spoke to the Italian educator's great granddaughter, Carolina Montessori and teacher Nan Abbott, who was trained by Dr Montessori in the 1940s.
Photo: Children develop their problem solving skills through play at a Montessori school in 1919. Credit: Davies/Topical Press Agency/Getty Images