Denver teachers say they will strike Monday after failing to win an agreement on pay.

Both sides met Saturday in a final attempt to reach a new contract after over a year of negotiations. They are expected to sit down at the bargaining table again Tuesday.

Teachers plan to picket schools around the city starting Monday. The district says schools will remain open during the strike and will be staffed by administrators and substitute teachers.

However, the district has canceled classes for 5,000 pre-schoolers because it doesn’t have the staff to take care of them.

The teachers’ union says 93 percent of participating members backed a strike in a vote last month.