Tens of thousands of teachers have voted for seven days of rolling strikes in February and March in move expected to cause major disruption in schools.
Some 90% of overworked and underpaid school staff balloted by the National Education Union (NEU) in England backed walkouts as part of a bitter dispute over pay and working conditions.
The NEU, the UK's largest teaching union, had asked around 300,000 teachers and support staff in England and Wales to vote for strike action.
