School officials in Philadelphia say nearly 300 staffers will be getting pink slips this week.
The teachers union says most of the layoffs involve school counselors and support staff. A spokeswoman says 263 union members are affected overall.
According to district spokesman Fernando Gallard, a total of about 290 layoff notices will go out tomorrow. They take effect June 30.
The school district is facing a $218 million budget shortfall for the fiscal year that begins July 1.