School Details

Adelphia Classical Christian Academy

Orange, CA 92866

School Website

General Information

  • ‘5-Day’ indicates a traditional 5-day-a-week schedule.
  • ‘4-Day’ or 'Half-day' indicates a shortened 4-day-a-week or half-day schedule, respectively.
  • ‘Hybrid’ indicates a further shortened, part-time, or hybrid schedule, meeting on campus for fewer than four full days a week.
  • One asterisk (*) indicates that the school offers a part-time or hybrid schedule as an option.
  • Two asterisks (**) indicate the identified schedule pertains to some but not all grade levels.

Many classical schools are established institutions that have only recently adopted a classical curriculum. Hence, to more accurately represent the classical school movement’s pace of growth, the ‘Opening Year’ includes both the year the school first opened its doors, and, where applicable, the year that it adopted a classical curriculum, with the two years separated by a slash (/). If those two years are the same, only one year is listed. For schools that transitioned to the classical model after opening but did not provide the year of transition on their websites or in response to emails, however, a slash follows the opening year.

Student body numbers were either posted on the school’s website, found on a third party website, or provided by the school via email.

‘Yes’ indicates that the school includes on its website one or more statements either identifying its mission as a partnership with parents or affirming parents as the primary educators of their children.
  • One plus sign (+) indicates that the school further encourages parental involvement by asking parents to volunteer a certain number of hours per semester or year.
  • Two plus signs (++) indicate that the school invites parents to join in the classical education their children are receiving through parent classical education programs or reading groups.
Curriculum Details

  • ‘Trivium’ indicates that the school conveys a commitment to educating students in arts of the trivium—grammar, logic, and rhetoric—the traditional liberal arts of language.
    • A hashtag (#) indicates that the school specifies its dedication of particular courses to the formal teaching of logic and/or rhetoric, rather than solely approaching logic and rhetoric as stages in the process of learning other subjects.
  • ‘Quadrivium’ indicates that the school conveys a commitment to educating students in arts of the quadrivium—arithmetic, geometry, astronomy, and music—the traditional liberal arts of number. While many American schools teach arithmetic, geometry, and music, quadrivium schools approach these subjects as arts of the classical quadrivium, teaching Euclid’s Elements in geometry, for example, or music theory in music.

‘Yes’ indicates that the school teaches “the classics,” whether identified as the great books, primary texts, or original sources.

‘Yes’ indicates that the school conveys on its website a commitment to limiting the use of screens in the classroom.

‘Yes’ indicates that the school incorporates memory work into its curriculum, whether through recitation or narration.

‘Yes’ indicates that the school offers Socratic seminars or otherwise incorporates the Socratic method in the classroom.

‘Yes’ indicates that the school teaches proper etiquette, whether identified as manners, etiquette, or protocol, either during the school day or through co-curricular events.

‘Yes’ indicates that the school implements a house system.

‘Yes’ indicates that the school offers education in the common arts, such as gardening or shop class, either through dedicated courses or school-wide “common arts” days.

Notes: Last updated April 10, 2025.