Alan Borsuk:

What does just about every fifth-grader know that stumps experts?
Who the best teachers are in that kid’s school. Who’s hard, who’s easy, who makes you work, who lets you get away with stuff, who gets you interested in things, who’s not really on top of what’s going on. In other words: how good each teacher is.
A lot of the time, the fifth-grader’s opinions are on target.
But would you want to base a teacher’s pay or career on that?
Sorry, the experts are right. It’s tough to get a fair, thorough and insightful handle on how to judge a teacher.
“If there was a magic answer for this, somebody would have thought of it a long time ago,” Bradley Carl of Wisconsin Center for Education Research at the University of Wisconsin-Madison:  told a gathering of about 100 educators and policy-makers last week.

The Wisconsin Center for Education Research at the University of Wisconsin-Madison has been working on “Value Added Assessment” using the oft-criticized WKCE.