A B.C. Supreme Court judge has delivered a blow to B.C. teachers in their ongoing labour dispute with the province by refusing to clarify a legal ruling on the union's rights to negotiate class size and composition.

Justice Susan Griffin says it is not the role of the courts to give opinions on hypothetical situations, as presented by the BC Teachers' Federation, which asked for the judge to provide instructions on her earlier ruling.

Griffin says the union even conceded in its arguments yesterday there was nothing for the court to clarify.

Her judgment last April came down hard on the government for creating legislation that stripped the rights of teachers to negotiate class size and composition.

Griffin gave the BC Liberals one year to resolve the conflict.

The teachers are in a legal strike position and were hoping a decision in the union's favour could be used during contract talks, which are set to resume today.