More children around the world are being taught in English, often badly

“ROLY POLY right, right, right. Roly poly left, left, left,” sings a class of five-year-olds at a government primary school on the outskirts of Lucknow, a city in India’s Hindi-speaking heartland. This English-medium school, one of seven that opened last year among the 215 government schools in the Sarojini Nagar administrative block, is part of an effort by the government of Uttar Pradesh, India’s most populous state, to counter the rise of private schools. Private schools have been mushrooming in India—private-sector enrolment rose from around a quarter of pupils in 2010-11 to over a third in 2016-17—and in Sarojini Nagar there are 200 registered private schools and many more unregistered ones. One of their main attractions is that the great majority of them use (or claim to use) English as the language of instruction.