Secondary school and supply teachers have rejected a deal with the Thames Valley District School Board.

The teachers withdrew from administrative duties on Thursday. They say they’ll step up their protests on Monday with increased “sanctions.”

“Complications caused by Bill 115 have made it extremely difficult to negotiate an acceptable collective agreement,” said Thames Valley District President Colleen Canon.

Ken Coran, the President of the OSSTF and the Chair of Negotiations agreed saying, “The requirements of Bill 115 essentially put a straitjacket on the process and minimized any chance of success.”

The school board says they have a "plan B." Retired administrators will be called in to help, and they’ll also consider bringing in non-unionized education workers.