Education unions have accused the government of risking a "full-blown funding crisis" for schools with their latest offer on teachers' pay.
The Department for Education has announced a rise of 5% for teachers and more for early-career salaries.
Five unions representing the majority of teachers said the plans would put pressure on stretched school budgets and exacerbate staffing shortages.
The government has described the offer as the most generous for years.
The proposal would see all teachers who have been in the profession more than five years receive a 5% rise in the next academic year.
