TORONTO — If 55,000 education workers walk off the job Monday, some Ontario schools will be closed. 

The Canadian Union of Public Employees (CUPE) Ontario School Board Council of Unions gave notice Wednesday that it would escalate job action to a full-on strike if a deal is not secured. CUPE workers had been doing work-to-rule since earlier this week. 

Negotiations start again Friday, so it is still possible that a strike will be avoided. 

Click Here: New Zealand rugby store

CUPE represents workers like custodians, education assistants, early childhood educators and librarians at Ontario’s schools. It represents different groups of workers at different school boards, and at some school boards, CUPE doesn’t represent any workers. 

School boards are currently deciding what will happen Monday.

These school boards have said their schools will definitely close if CUPE workers strike:

These boards have said closures are possible:

This board has said some schools will close: 

This story was most recently updated Friday, Oct. 4 at 2:22 p.m.