Teachers rated by students and parents

Do sites that enable parents and students to rate teachers anonymously serve a useful purpose? Some teachers would benefit from comments about them on the site. If students consistently rate them as boring, then perhaps some teachers might take a look at their style of teaching. When parents and students heap praise on teachers for their work in the classroom or on the sports field, they encourage good teachers who often do not receive enough feedback about their performance from the public. The important thing here is that comments be made honestly and in the spirit of constructive criticism. The site moderators appear willing to delete pointless and hurtful comments.

http://www.ratemyteachers.com/ (United States)

http://www.ratemyteachers.ca/ (Canada)