text: The Facial Action Coding System could also help online instruction by allowing computers to better replicate human instructors. If the computer were able to know when a student was having trouble with a subject, it could offer more assistance with the student's learning, similarly to a human teacher. The lessons after this could also be affected in order to help the student's learning based on what the student was having trouble with previously. Online learning would become much more intuitive with FACS.