Schools in England could face further strike action as the National Education Union has asked teachers to reject a new pay offer, after intensive talks.
The government has offered teachers a £1,000 extra cash payment this year and a 4.3% rise for most staff next year.
Many teachers in England received a pay rise of 5% in September 2022 but unions say this was a cut due to inflation.
Thousands of schools were disrupted by the latest walkout by teachers who are members of the NEU.
Four unions have been involved in six days of intensive talks with the education secretary since 17 March about teachers' pay, conditions and workload.
The NAHT, NEU, ASCL and NASUWT unions have been calling for above-inflation pay rises, funded by extra money from the government rather than coming from schools' existing budgets.