Unions say there will be no disruption to schools during today's protest by 27 thousand teachers.
Rallies are planned outside every secondary school at lunchtime, by members of the Association of Secondary Teachers of Ireland and the Teachers Union of Ireland over changes to the Junior Cert.
They're concerned the reform is being introduced next year, without proper consultation or the necessary resources.
The President of the TUI, Gerard Craughwell, says proper consultation hasn't taken place:
