Too few states are using data to determine if their supply of teachers is meeting the demand of school districts, according to the National Council on Teacher Quality.
Teachers will receive a 5 percent raise, pending a vote by the state legislature. School will resume Thursday.
Hundreds of demonstrators, including some educators, gathered outside the U.S. Supreme Court as the justices heard arguments in a case that could get rid of certain fees paid by nonmembers.
Union leaders announced on Monday that the statewide teacher strike for higher wages and better benefits will continue for a fourth day.
Defeat of a bill that would have given Oklahoma teachers their first raise in a decade has prompted more drastic measures.
In West Virginia, teacher strikes and work stoppages are illegal, with possible punishments including suspensions, firings, and denial of pay.
President Donald Trump suggested that arming 20 percent of teachers would prevent school shootings like the one in Parkland, Fla. But many teachers are fiercely opposed to such a measure.
The Gates Foundation is redirecting its financial backing away from teacher evaluation overhaul efforts to more "locally-driven solutions."
Policymakers have weighed arming teachers at school and training them to shoot back in case of emergency in the aftermath of school shootings like at Sandy Hook and now, Marjory Stoneman Douglas High School.