Mayor de Blasio and Schools Chancellor Carmen Farina are getting ready to welcome New York City's students back to school.
Thursday is the first day of school for most of the city's 1.1 million public school students.
De Blasio and Farina will each visit schools in different neighborhoods to greet students and staff.
Thursday is a big day for de Blasio because thousands of prekindergarten students will be attending school in buildings that never had pre-K classes before.
Expanding access to pre-K was de Blasio's signature issue when he ran for mayor last year.