It was an academically oriented school for black students which aimed to send their pupils to the top universities and there Granville was strongly encouraged by two of her mathematics teachers Ulysses Basset and Mary Cromwell.
Ito ay isang academically oriented paaralan para sa itim na mag-aaral na naglalayong na magpadala ng kanilang mga nag-aaral sa unibersidad sa tuktok at may Granville ay Matindi hinihikayat sa pamamagitan ng dalawang ng kanyang mga guro sa matematika Ulysses Basset at Mary Cromwell.