Think about several of your own past schoolmates who showed low motivation in school. Why do you?

Loss of motivation is one symptom of uncaring tutors. I was a typical eager teenager until one day I realized that nobody gave a damn if I was smart or dumb, well groomed or sloppy, active or passive, or anything else. My entire school experience was nothing more than supervised play, and the supervision was pretty lousy. Here are a book and an essay to help you understand:
The Lost Tools of Learning www.gbt.org/text/sayers.html
The Underground History Of Public Education www.johntaylorgatto.com/chapters/index.htm