Schools will close for a full day on Wednesday 26 April due to the teaching unions’ strike.
The National Association of Head Teachers (NAHT); the NASUWT; the Irish National Teachers’ Organisation (INTO); the Ulster Teachers’ Union (UTU) and the National Education Union (NEU) will walk out for the day.
A half-day strike was held previously on 21 February.
The strike is due to a dispute over pay and workloads.
In February last year, unions rejected a pay offer for 2021-2023.
The cost of living has spiralled with inflation now at over 10%.