Teachers are preparing for more strike action this summer as the long-running row over pay, pensions and conditions continues.
Members of the National Union of Teachers (NUT) could stage walkouts at the end of June if their dispute is not resolved, it has been announced.
The union is due to debate a priority motion at their annual conference, being held in Brighton, which seeks co-ordinated national strike action in the week beginning Monday June 23, if "significant progress" is not made in ongoing talks with government officials.
The move comes just weeks after the NUT staged a national walkout, and raises the prospect of widespread disruption to thousands of schools in England and Wales in the summer term.
The resolution declares that the NUT's national walkout last month was a success, and calls on the union to continue its Stand Up For Education campaign.
It goes on to say that the union should review the progress made in on-going talks being held with the Department for Education at its May meeting.
The resolution adds: "In the event that significant progress is not being made, seek to co-ordinate national strike action in the week beginning Monday June 23 2014, whilst showing flexibility if other school-based, education and public sector unions are planning action on similar time scales, and whilst being prepared to take strike action alone, as on March 26, 2014."
The latest strike date comes at the end of the summer GCSE and A-level exam season.
Exam timetables show a number of GCSE and A-level maths papers are due to be sat by students on the first two days of that week, in subjects such as maths, physics, religious studies and health and social care. An advanced maths extension paper set by one exam board is also scheduled to take place on Wednesday June 25.
However, NUT leaders insisted that they were not seeking to impact on the exams.
Additional reporting by the Press Association
