Ronald GallimoreEveryone's a teacher to someone (John Wooden)

No single number can identify a good school.

Every once in a while a comment comes along that bears repeating.
Many times. This is one: “There is no single number that anyone can look at and say this is a good school or this is a bad school.”
(Dr. Joan Herman, Director, UCLA’s CRESST (National Center for Research on Evaluation, Standards, & Student Testing).

For more wise words by Joan, click here

I’d add there is no single number that tells who is and who is not a good teacher. If only it was that simple.