It's back to the books for Broward.
More than 270,000 students are returning to schools with expanded innovative programs and unsurpassed achievement levels.
Broward Schools Superintendent Robert Runcie says, "We're going to continue to build on a trajectory. This year was the first year we'll start our school year with no F schools. We come off last year with the highest graduation rate we've had in the district." He adds third graders are also tied for top level proficiency for large districts.
When it comes to safety and security, he promises a school resource officer or an armed guardian on every campus, Broward Sheriff's Office access to 10,000 real-time cameras and more than 1,100 new radios and intercom systems.
The district's 225 buses all have new GPS systems and two-way radios.
He warns law enforcement to have their paperwork in hand if they're planning an immigration raid.
He says, "We're not just going to let any entity just come and roam our campuses looking for people or students."
Miami-Dade's school superintendent made similar promises in the past about preventing raids on campuses.
Miami-Dade schools resume on Monday.
Today is also the first day of school in Monroe County.