Most public high school students are expected to be out of class on Wednesday now that the Ontario Secondary School Teachers' Federation and the provincial government have failed to reach an agreement.
Teachers and education workers represented by OSSTF will stage a one-day, province-wide walkout because contract talks have stalled.
Both sides remain deadlocked on several issues, including larger class sizes and new mandatory online learning classes.
Some school boards have already announced plans to close in the event of a strike. Here's a quick guide to help you plan.
Can I send my kid to school if there's a strike?
No. Several school boards have announced schools will be closed on Wednesday.
The Toronto District School Board said it has no other option but to close all secondary schools to students as there would not be sufficient supervision to ensure their safety.
"After thoughtful consideration, we have determined that student safety cannot be ensured during an OSSTF strike," the Peel District School Board said in a news release. "As such, on Dec. 4, all secondary schools — Grades 9 to 12 — will be closed to students, unless progress is made in negotiations."
How will I know if my child's school is open or closed?
School boards have been communicating directly to parents, and have also been posting updates on their social media pages.
Will extra-curricular activities be cancelled?
You should double-check, but the answer is likely yes.
What if I have a permit to use the facilities at a local high school school?
Check with the local board if you want to be sure, but you're probably OK.
At the Toronto District School Board, for example, CUPE staff — who already negotiated a deal with the government — are still on the job, allowing permits to go ahead.
Where can I send my child/children for the day on Wednesday?
A library or a museum is always a good choice. Toronto Public Library branches will be open throughout the day Wednesday with closing times ranging from 6 p.m. to 8:30 p.m. Feel free to check your nearest branch for exact opening hours.
Museums will also be open on Wednesday with closing times ranging from 5 p.m. to 5:30 p.m. Once again, please double check opening hours.