Here is one short quote from the piece about how we've stopped trusting teachers to evaluate our kids and turned to standardized tests instead.
"About a generation ago, acceptance of teacher judgment about the quality of student work began to disappear. Waving the "standards and accountability!" banner, leaders of business and industry convinced politicians that this generation's teachers (unlike those they remembered from their own schooling) couldn't be trusted to evaluate learner performance. Today's teachers, they were sure, suffered from "the soft bigotry of low expectations."
An interesting read. Don't forget to read the comments for and against the author's point of view at the bottom.