New York threatens to strip some funding from struggling schools that don't install new systems for evaluating teachers. - 

Adriene Hill: Now to New York state, where struggling schools could lose millions of dollars if they miss a deadline this weekend. The schools are required to adopt new systems to evaluate teachers and principles.

From the Marketplace education desk at WYPR, Amy Scott reports.

Amy Scott: The more than $100 million in federal grants is meant to help turn around chronically underperforming schools.

John King:  The underlying holdup is really a culture shift.

That’s New York state education commissioner John King.

King: In school districts around the country, evaluation happens rarely, if at all, and isn’t particularly rigorous.

Unions are at odds with school officials over how to measure good teaching. That’s jeopardizing grants in New York, even as other states look to build new evaluation systems. John Tyler is an economics and education professor at Brown University.

John Tyler: Teacher evaluation is one of the major education reforms. It’s really sweeping across the nation at this point.

Such systems are a requirement for states that have won a share of $4.5 billion in federal Race to the Top money.

I’m Amy Scott for Marketplace.

Follow Amy Scott at @amyreports