When it comes to ensuring every student gets great teachers, state governments play a crucial and underappreciated role. Without access to the right data, school systems will struggle to match the supply and demand for new teachers. Without certification policies that prioritize student impact over paper credentials, too many talented people will…

Nobody goes into teaching to get rich, but that's no excuse not to pay teachers as professionals. Compensation is one of the most important factors in determining who enters the teaching profession and how long they stay--yet 90 percent of all U.S. school districts pay teachers without any regard for their actual performance with students,…