More than eight million pupils aged between four and 18 head back to the classroom from tomorrow as the UK takes its first and 'irreversible' steps out of lockdown. The move has the support of nine out of ten parents, who have been home schooling since January. Boris Johnson has hailed the return as heads and teachers are preparing for the epic challenge of repeatedly testing more than three million secondary school children over the first fortnight. Some 57 million Covid test packs have been sent to schools and colleges in a bid to ensure the safe return and break any chains of transmission.