Great Hearts Lincoln Prep, Serving Grades 6-12 Lincoln Preparatory Academy is a state-chartered public school providing an honors level liberal arts curriculum in the tradition of the finest independent private schools. As such, we offer an outstanding opportunity for families who want the very best in a college preparatory institution. Lincoln Prep is a member of the prestigious Great Hearts Academies network of prep schools in the metropolitan Phoenix area. Together, the Great Hearts Academies are setting a new standard and purpose for public secondary education.