Since it may take a couple of years for states and districts to follow the department's urging and set up systems that will allow them to measure teacher effectiveness based on growth in student achievement, she said, states should be required to show that they are making good on the language
about equitable distribution of teachers that's already in the No Child Left Behind Act.
While many states and districts have complained
about the law's demands, some organizations like the Education Trust have argued that state and federal governments haven't gone far enough to improve the
equitable distribution of teachers.