The Education Minister says the decision of teachers unions to picket centres where teachers will get Junior cycle training sits uneasily with her.
Both secondary teachers unions are to mount pickets outside centres where English teachers are to get further training from next week.
It's part of their objection to the reformed Junior Cycle.
Addressing teachers at the TUI conference in Wexford this afternoon, Minister O'Sullivan said she's determined to press ahead with reforms suggested by Dr Pauric Travers.
