Classrooms like this one were checked out by health experts before students are allowed to return to class.
More than 1,000 teachers, administrators and secretaries with the Broward School District have been notified that they will not have jobs next school year.
The district notified 568 teachers and 737 noninstructional employees on Monday.
The layoffs are effective July 1.
Superintendent James Notter estimates more than 300 of the teachers could be rehired. Last year, 394 teachers were laid off and all but about 20 later offered jobs.
The district is struggling to close a $130 million budget shortfall.
Districts around the nation are laying off thousands of teachers, with the U.S. Department of Education saying up to 300,000 education jobs could be lost this fall.