BRISTOL, UNITED KINGDOM - FEBRUARY 26: Pupils take part in a maths lesson at the Ridings Federation Winterbourne International Academy in Winterbourne near Bristol on February 26, 2015 in South Gloucestershire, England. Education, along with National Health Service and the economy are likely to be key election issues in the forthcoming general election in May. (Photo by Matt Cardy/Getty Images)
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Getty Images News Matt Cardy