Philadelphia Weekly has a very lengthy article on this interestingly-premised school, to wit:

David Hardy, 57, Philadelphia Boys’ Latin’s CEO, says he chose Latin as the foundation for his new school because students who study it consistently score higher on SATs and do better in other subjects because it holds them to high standards that public schools can’t hold them to.

Studying the Latin language, according to the school’s statement, also helps students learn other languages faster—especially romance languages—while aiding in the acquisition of non-romance languages. Additionally, Latin’s differing structures and sentence order “help develop observant, analytical and logical students,” according to the school’s website and promotional pamphlets.