One of the hottest issues in State Houses this year was Common Core, national math and language arts standards released in 2010 and adopted by most states. According to the National Conference of State Legislators, this year more than 730 Common Core bills were introduced across the country, including 21 state proposals for repeal. This week, the Southern Education Desk examines why these public school standards are still so controversial in the South. Today Sherrel Wheeler Stewart from WBHM explains the roots of the opposition and the challenges the standards face.