Maya and Imani prepare to start school at PS 154 in Harlem.

Students head into PS 361 in East Flatbush.

Tina Woo and her daughter Olivia, who's entering fourth grade at PS 282 in Park Slope.

Matilda eagerly heads to pre-K at PS 282 in Park Slope, with mom Jessica Magaldi and friends walking behind.

At PS 178 in Washington Heights are students Stephanie, age 10; her cousin Francesca, age 7 and her sister Rubi, age 11.

Teacher Jessica Franco greets students at PS 178 in Washington Heights.

Vestina Benjamin, a 2nd-grade teacher at PS 154 in Harlem, stands with a student.

Third grade teacher Linda Green and student Jalen are all smiles at PS 154 in Harlem.

Students head inside PS 115 in Canarsie, Brooklyn.

Paraprofessionals (from left) Brooke Frankel, Ryan Dinneny and John Merlino at PS 37 on Staten Island.

First-year pre-K teacher Paige Buono, who was celebrating her 25th birthday along with the first day of school, greets UFT President Michael Mulgrew at PS 59 on Staten Island.

Representatives from 100 Black Men greet students at Thurgood Marshall Academy in Harlem.

2nd-grader Saida and 1st-grader Aziza brought flowers for their teachers at PS 199 in Midwood.

Vazira Bakhramova brings her 3rd-grade daughter Binafsha and pre-K son Alikhan to PS 199 in Midwood, Brooklyn.

Artif Zaheer brings his son Mustafa to start kindergarten at PS 199 in Midwood, Brooklyn.

Pre-K teacher Anna Charland works with a new student at PS 17 in Astoria, Queens.

Prekindergarten students get adjusted to their new classroom at PS 17 in Astoria, Queens.

Yanibel Arias, Christina Carela and Kiera Mingo, all paraprofessionals at P 469 in the Bronx, show off their school colors.

At PS 135 in Queens Village, pre-K teachers Stacy Saltarella, Jessica Mullaney, Indra Summerville, Jaimie Kohl, Janet Tinghitella and Louise Thomas are "red and ready" for their new students.