The three main teaching unions have voted to join other unions and take strike action on 30 March, closing thousands of schools.
The Association of Secondary Teachers Ireland, the Irish National Teachers Organisation and the Teachers' Union of Ireland decided to join the Irish Congress of Trade Unions day of action in protest at public sector cuts.
The INTO, whose members will have to pay the controversial pension levy being imposed on public-sector employees, is also considering a work-to-rule protest in Ireland's 3,000 primary schools.
