text: In conclusion, these computers are extremely valuable. Not only to the teachers, but to the students as well, because it can help teachers differentiate who's happy, sad, angry, confused, or bored, and if the students are happy in class, they are more willing to participate. Better participation equals better grades. It's not a teachers job to make everyone happy, it's to teach a class, but if some of the students are unhappy and it is effecting their ability to learn in class, than this computer is the perfect way to help everyone out.Dear TEACHER_NAME,