Students are enjoying a week off, but the the city's new schools chancellor is officially on the job.

Richard Carranza arrived at Tweed Courthouse on Monday morning for his first day. 

He will be in charge of more than 1 million city school students.

Carranza had lunch Monday afternoon with Mayor Bill de Blasio and Frist Lady Chirlane McCray at Katz's Deli on the Lower East Side.

He did not answer questions from reporters. 

Carranza replaces chancellor Carmen Fariña, who retired Friday after 52 years in education.

He was hired after the mayor's initial pick to replace Fariña suddenly backed out on live television. 

Carranza previously served as schools superintendent in San Francisco and Houston and is fluent in Spanish.

As steward of the city's 1.1 million students, Carranza will have to navigate thorny issues like the achievement gap and relationships with potential adversaries like charter school advocates and Gov. Andrew Cuomo, who announced Friday that $1 billion in new education funding statewide would come with new reporting requirements. Cuomo has taken to bashing city schools for not documenting dollars spent per school and per student.

"How do they distribute the money, school by school?" Cuomo said after the budget was unveiled. "Nobody knows. How can that be? Nobody knows."