A teachers' national successful England is to ballot members connected onslaught enactment aft 87% of its members voted to cull the government's wage offer.
The NASUWT, which represents 280,000 teachers successful the UK, said the connection failed to code its concerns implicit wage and moving conditions.
Four unions person present rejected the connection - including the National Education Union, which is readying much strikes.
The authorities has said further onslaught enactment was "extremely disappointing".
Most authorities schoolhouse teachers successful England had a 5% wage emergence successful 2022.
They were offered a 4.3% emergence adjacent year, arsenic good arsenic a £1,000 one-off outgo this year. Starting salaries would besides emergence to £30,000 from September.
The authorities said it believed schools could spend to money astir of the wage emergence from their budgets, and that other wealth would person been provided to marque up the rest.
But unions person been campaigning for a afloat funded wage rise, arguing that taking the wealth from schools' budgets could mean they person to marque cuts elsewhere.
The government's wage connection has besides been rejected by the National Education Union (NEU), the National Association of Head Teachers (NAHT) and the Association of School and College Leaders (ASCL).
At the NASUWT's yearly league successful Glasgow connected Saturday, Dr Patrick Roach, the union's wide secretary, urged Education Secretary Gillian Keegan to instrumentality to wage talks.
"The government's wage connection failed to travel adjacent to addressing the concerns implicit wage and moving conditions of teachers and this has rightly been rejected by our members," helium said.
"Gillian Keegan has said that she is consenting to negociate and to perceive to the profession. She indispensable present show that she means what she says by getting backmost astir the negotiating array to find a solution to our dispute."
He said the onus was connected the authorities to marque a "fully-funded wage connection that volition beryllium acceptable to the profession".
The national did not uncover the turnout of the consultative ballot, but it said 77% of members said they would beryllium consenting to ballot for onslaught action.
Members of the National Education Union successful England - the UK's largest acquisition national - volition onslaught connected Thursday 27 April and Tuesday 2 May.
In Northern Ireland, five teaching unions volition onslaught connected Wednesday 26 April.