teachers

Teachers select and grade paintings done by candidates taking part in an entrance examination at China Academy of Art in Hangzhou...Teachers select and grade paintings done by candidates taking part in an entrance examination at China Academy of Art in Hangzhou, Zhejiang province, March 25, 2015. REUTERS/Chance Chan

Chance Chan/Reuters

Teachers select and grade paintings done by candidates taking part in an entrance examination at The China Academy of Art in Hangzhou, Zhejiang province 

Indian schoolchildren perform yoga at Delhi Public School in Hyderabad, India, Monday, Oct. 20, 2014. Around 5,000 people including students, teachers and parents performed seven yogic postures, following a religious prayer for world peace.

Mahesh Kumar A/AP

Indian schoolchildren perform yoga at Delhi Public School in Hyderabad, India on Monday. Around 5,000 people including students, teachers and parents performed seven yogic postures, following a religious prayer for world peace

A woman protests against the school refo...A woman protests against the school reform as teachers, assistants and parents demonstrate on November 14, 2013 in Marseille, southern France, during a nationwide day of strike to protest against the government's reform in the duration of classes and extracurricular activities, making children attend classes five days a week, instead of four in nursery and primary schools. AFP PHOTO / BORIS HORVATBORIS HORVAT/AFP/Getty Images

Boris Horvat/AFP/Getty

A Marseille woman protests during a nationwide strike against French education reforms. Proposals aim to change the duration of classes and extracurricular activities, making children attend classes five days a week, instead of four in nursery and primary schools.

A demonstrator marches during a teachers protest demanding better working conditions and against police beating, on Monday night in Rio de Janeiro.

Christophe Simon/AFP

A demonstrator marches during a teachers protest demanding better working conditions and against police beating, late on Monday night in Rio de Janeiro.