Courses offered through the Advance College Project (ACP) are taught by carefully selected and highly qualified high school teachers who are appointed as adjunct lecturers by Indiana University (IU).

The participating academic departments at IU and the local school districts assume joint responsibility for the nomination of the high school teachers. The selection of high school teachers is done by applying the same standards applied to any adjunct or part-time faculty teaching on the IU campus. Final approval of the teachers, however, is made by the college academic department as represented by the faculty course coordinator.

The ACP teacher recommended criteria include:

• five years teaching experience in the subject area
• a minimum of one year's experience teaching an advanced course in the subject area (AP or honors equivalent)
• certification to teach the subject
• a Master's degree or its equivalent in graduate hours or significant graduate courses to reflect knowledge and depth in the subject area approved for; successful completion of undergraduate and graduate level coursework at a competence level that indicates the ability to teach the ACP college-level course; grades earned in the subject area courses need to show a better than average preparation to teach the subject

Teachers selected for ACP must participate in intensive summer seminars prior to their teaching the ACP course. Summer seminars are conducted by IU/ACP faculty members. Seminars cover the IU syllabi, course topics, textbooks and suggested teaching strategies. This training allows teachers to become affiliated with IU academic departments.

In addition to the intensive summer  seminar for new ACP teachers, review seminars are held yearly in most subject areas. ACP teachers are expected to return campus for the review seminar to meet as a group with IU faculty in each content area. These day-long sessions are used to evaluate the implementation of the specific course for that term and to provide the course instructors with an opportunity to discuss any questions or problems that have arisen. In addition, policies governing the course (changing the syllabus, adopting a new textbook, changing course hours, adding courses, etc.) are frequently discussed during the review seminars. In other cases, a review seminar can serve as a mini-training workshop, introducing ACP teachers to new developments in the course area and focusing on issues of pedagogic innovation.