text: The program "Facial Action Coding System", enables the computers to identify human emotions. The process begins when the computer constructs a 3-D computer model of the face. This software then allows the teachers to know when the student does not understand, or what part of the lesson is the student confused on. This program can help by letting the teacher know when the student is struggling to understand what is being taught so then the teacher can make a few adjustments to the lesson.