Jobs at a Christian school involve teaching, administrative, and leadership roles, along with other necessary positions that support the daily operations of the facility. Christian schools are private institutions, and instructors typically teach a curriculum that is informed by Christianity as well as secular subjects. Teachers, sometimes assisted by teaching assistants, may teach one subject, such as math or history, to different classes, or they may teach all topics to one classroom. Religious schools also have a principal and administrative employees. The school may employ a librarian, nurse, and janitorial staff, as well as athletic coaches and substitute teachers.