Cash Bonuses for Teachers?

From Harvard's Kennedy School of Government: "New York City has moved forward with a controversial plan to give cash bonuses to underperforming schools where student test scores are rising. Similar plans have alredy been deployed in Denver, Minneapolis, and other cities. With the blessing of New York's local teachers' union, the plan provides awards to entire schools, not just individual teachers, who raise test scores. A school committee then determines how the award will be distributed to the teachers. The plan is voluntary and would require that at least 55 percent of the teachers at a participating school vote to opt in."