The Teachers Unions - the ASTI and the INTO will hold their annual congresses in Wexford and Cork today.
The Teachers Union of Ireland begins its conference in Galway tomorrow.
The Croke Park II deal is likely to top the agenda at all three meetings.
At the Association of Secondary Teachers Ireland conference in Wexford, a motion will be moved to call on members to vote against the proposals.
The TUI in Galway will also begin its conference with a special motion on Croke Park, even though its members have already voted No to the deal.
However, it is not yet clear how INTO members will vote.
The leadership has not made a recommendation for or against the proposals.
The Education Minister Ruairi Quinn will address the INTO and the ASTI conferences tomorrow.
While, he'll visit the TUI conference on Wednesday.