This is a good point. Not all students learn the same way, and a teacher who is great at working with students with specific personalities/abilities might not be good at working with other students. So measuring the quality of education from one student to another is very important too, in addition to measuring the average performance of the students in a teacher's class.Originally Posted by Lightdemon
Fortunately, the information technology exists where we can tell who is good at dealing with gifted children, who is good at dealing with problem children, and who is terrible. It's just a matter of utilizing it. Average student data is effective at telling who is a good teacher (or at least who is a good teacher for the classes they're teaching), and adjusting merit pay accordingly. Individual student data is effective at matching a student with the teacher who is the best fit for him/her.