Tianjin Normal University advocates classes without cellphones (1/2)

A student puts her cellphone in the "Safety Island of Cellphones" before class at Tianjin Normal University in Tianjin, north China, April 23, 2014. "Safety Island of Cellphones" is a group of numbered bags in classrooms, students put their cellphones in the bags before class and take them back after class. (Xinhua/You Sixing)