There was little dissent when the standards were widely adopted in 2010, but that begun changing last year and debate picked up steam this year.
Some states are pushing back against the Common Core State Standards, a set of uniform benchmarks for reading, writing, and math that have been fully adopted in most states and are being widely put in place this school year.
The new Common Core State Standards replace a hodgepodge of educational goals that had varied greatly from state to state. The federal government was not involved in the state-led effort to develop them but has encouraged the project.
While proponents say the new standards will better prepare students, critics worry they’ll set a national curriculum for public schools rather than letting states decide what is best for their students.
(Next page: What has states so concerned?)