The president of the B.C. Teachers’ Federation says a full-scale strike is “imminent.”

Jim Iker told reporters Monday morning that the B.C. government “squandered an opportunity” to reach a deal with the province’s 40,000 teachers in this weekend’s marathon bargaining session.

A full-scale strike will begin Tuesday unless a deal is reached. Negotiations ended just before midnight Sunday, with no resolution

Iker said teachers waited all weekend for the government to respond to what he says are significantly revised proposals on wages and contract length -- as well and options on class size and composition -- but the province simply took money off the table, rather than bargaining in good faith.

“The government sat on its hands for two days. They brought nothing to the table to bring the two sides closer together,” Iker said.

B.C.’s education minister characterized the weekend’s efforts quite differently, calling the bargaining “productive.”

Related: The employers' breakdown of current demands and offers

Peter Fassbender told CTV Morning Live that both sides are “much closer together” after an intense session of talks this weekend between the BC Teachers' Federation and B.C. Public School Employers Association.

Fassbender refused to comment on details in the offer, but said “anything is possible” when asked if a full-scale strike could be avoided.

He added that the government’s offer is "as good as it's going to get."

Teachers across the province are out of the classroom Monday for a B.C.-wide study session, but there will not be any pickets up in front of schools.

In May, teachers voted overwhelmingly in favour of a limited job action.

The government responded by imposing a partial lockout and docking the teachers’ pay by 10 per cent.

With files from The Canadian Press