For the third time, Cardinal Hayes High School hosted a group from the Dominican Republic's Ministry of Education.
The delegation of officials made their way through the halls and the classrooms with students as their guides on Tuesday.
There were also special sessions on math, science and history.
Students and teachers say they are happy to be chosen as hosts because so many students have ties to the Dominican Republic.
"Our students get an opportunity to learn about their background, their parents' background - it's an interaction that's mutually beneficial," says teacher Francis DeCastro.