Value-Added, Again

Here are some points from the Shanker Blog about 'performance incentives' for teachers (because, you know, they worked so well for Wall Street):

Unlike uniform salary increases, financial incentives are:

• based on an economic model that assumes teachers make career decisions in response to money;
• not guaranteed from one year to the next, unless they are awarded as permanent raises, and thus may not appeal to teachers if they are risk-adverse;
• potentially insulting to teachers (particularly incentives that are performance-based) because they can be taken to imply that teachers are withholding improvements to student learning and performance for higher pay;
• possibly ineffective (particularly those that are performance-based) if teachers don’t know what more they can do to increase student performance or meet other outcomes to which incentives are attached;
• and bound to raise delicate questions of fairness between teachers and of trust between teachers and districts.  

(emphasis added)