Nearly 70 bilingual classes from Arabic to Russian are coming to some city schools.

The Education Department says 66 schools across the five boroughs will take part in the dual language and transitional bilingual programs.

Officials say it’s the largest expansion of the program since 2010.

"The graduation rates of the students in dual language and transitional bilingual tends to be higher. Our gap is closing, so if what we really want is educated citizens of tomorrow, this is one of the ways to go," said Schools Chancellor Carmen Fariña.

Officials say 90 bilingual programs have opened across the city in the last three years. 

There will be more than 500 programs in place by September.