Ad Fontes Academy is a nondenominational Christian school with a classical approach to education. The school's name means "to the sources" in Latin, emphasizing Ad Fontes' commitment to a liberal arts education. The students' main resources are the original manuscripts, not textbooks. Students train in logic, rhetoric and memorization. The upper school, housing grades 6 through 12, is located at Centreville Presbyterian Church, while kindergarteners through fifth graders study at St. John's Episcopal Church. The school offers part-time enrollment for grades 6 through 12 in addition to full-time opportunities.