The Tampa Bay Times reports that teachers are baffled, confused, and outraged by their value-added ratings, which will determine their evaluation, their longevity and their career.

The story begins like this:

Geoffrey Robinson is a National Board certified teacher at Osceola High School in Pinellas County who says 60 percent of his upper-level calculus students last year tested so well they earned college credit.

But this week Robinson received his teacher evaluation, based on a controversial new formula being rolled out statewide.

He was shocked to see how poorly he scored in the “student achievement” portion: 10.63 out of 40.

He’s not alone. Teachers all over Pinellashave received their scores, calculated by a new formula that confounds even math teachers. Hillsborough teachers also got their scores, though their situation is different due to participation in a grant program with its own evaluation rules. In Pasco, the scoring is on hold while the teachers union and the district figure out how to implement it.

Another teacher said that she is one of the best in the state in terms of test scores, but was rated only 57 out of 100 points. She said:

“I know I’m good, I’ve been teaching for 19 years, I’m not stressing about that. But if I was new, I’d go home crying.

Teachers were wondering how these wildly erratic and inaccurate ratings are supposed to improve education.

In Hillsborough, where the Gates Foundation poured in many millions of dollars ($100 million?), 95 percent of teachers were rated either “effective” or “highly effective.” So they are not as unhappy as the bewildered teachers in Pinellas County.

Some teachers were rated based on the scores of students they never taught.

As one teacher says in the article, this system is not ready for prime time.

Can anyone remember how or why it was supposed to improve education?

It would be interesting if someone figures out how much money Florida received from Race to the Top and how much it has spent to implement the mandates of Race to the Top.