Rate the following essay on its writing, argument, and language skills:
In "Making Mona Lisa Smile," the author describes the Facial Action Coding System, or FACS, which allows a computer to identify human emotion through the expressions of one's face. The FACS has decyphered the many different expressions portrayed by the famous Mona Lisa painting, created by Leonardo Da Vinci. But it can be channeled into a much more profitable cause; reading the emotions of students in a classroom. It could allow teachers to see how effective the lesson is on the students and how many students are truly paying attention.

The effectiveness of a lesson is essential to the understanding of a class. If students cannot understand a lesson, frustration sets in and the student begins to give up. With the FACS, however, that sense of frustration could end as quickly as it began. The FACS would allow teachers to monitor the facial expressions of teir students, alowing them to probe the student to ask questions, rather than sit in confusion.

The FACS could also allow teachers to see who is truly paying attention in class. With Dr. Huang's software, teachers could tell how effectively the lesson changed the mood of the students, allowing them to see any signs of mixed emotions or emotionless faces. For example, just like how Mona Lisa's expressions revealed her emotional state in paragraph one, it could do the same for students. Also i paragraph 6, it describes a visual perception of certain Web ads could cause certain emotions, just like a lesson. All these emotions could the be associated with many different moods such as boredom or tiredness. The teacher could then switch to an activity which allows all students to actively pay attention to what is being taught.

Overall, the effectiveness of the Facial Action Coding System could be very beneficial in a classroom environment. It could allow teachers to see the cloud of confusion that hangs over the room of students, enabling them to prod the efforts of the students to ask questions. It also allows teachers to see who is paying attention in class, giving them a sense of how effective the lesson plan is, which could lead them to either continue with the same teachings or switch up the activities done by the class.This could help the grades of many students for the better.

Score: 4