Rate the following essay on its writing, argument, and language skills:
The Facial Action Coding System is an instrumental tool in defining the emotions of humans, and may even be used for the next hundreds of years. It could read if you're sad, happy, angry, or even disgusted and fearful. Even it may help change what you face every day in your life, especially online and your current emotion. But how does it do it? Simple, it calculates facial data, and should be used in the classroom.

The use of FACS can detect all your major muscles by utilizing a 3D model of the face, and to be moved around to figure out what the emotion is being displayed. And when implemented into classrooms, it'll show how we're really feeling. Just like the classroom computer example, seeing how you're really feeling can change things up. You may be bored or confused, and so, the teacher can arrange the lesson around to tidy things up for your brain. And so, having the use of FACS in the classroom is recommended so we can stay happy for the most part in school.

Score: 2