The federal government has spurred the creation of a new generation of teacher evaluation systems at the state level through more than $4 billion in Race to the Top funding to 19 states and No Child Left Behind (NCLB) accountability waivers to 43 states. A majority of states have passed laws requiring the adoption of teacher evaluation systems that incorporate student achievement data, but only a handful of states had fully implemented new teacher evaluation systems as of the 2012-13 school year.

