A look at learning around the world from students in well-resourced schools to those crammed into corridors in the Philippines, on boats in Brazil and crowded classrooms in Burundi.
While in many places around the globe it continues to be a a struggle to gain an education, particularly for girls, amid intimidation in Pakistan, conflict in Syria or poverty in Vietnam, the overall number of children not attending primary school has plummeted to an estimated 57 million worldwide in 2015, according to the U.N. That is down from 100 million 15 years ago.
In this photo, teacher Ana Dorrego poses with students of the rural school Agustin Ferreira on the outskirts of Minas city, Uruguay, September 15, 2015. The school has 12 students aged 4 to 11, with only one teacher. Activities include milking a cow, planting vegetables and cooking.