Teachers in West Chicago Elementary School District 33 have given notice they could strike as early as Jan. 7.
The Daily Herald reports that the teachers in the suburb voted earlier this month to file their intent to strike. The paperwork was filed Friday.
A union official said teachers had been hopeful they could reach a compromise with the school board over key issues, particularly regarding health insurance premiums. But she said no compromise had been reached as of this week.
The school board president said the district must cap the amount it pays for health insurance in order to balance the budget.
The two sides also have disagreed on salary and class sizes.
Jan. 7 would be students’ first day of school following the holiday break.