Oklahoma following South Dakota in allowing teachers to carry guns at school?

Last Friday, South Dakota's governor signed a law allowing people to carry concealed handguns on school property.  There could soon be six states that allow concealed carry on K-12 school campuses.  From Fox News:

Public school districts across Oklahoma could decide whether to allow armed teachers in classrooms under a bill approved late Tuesday in the Oklahoma House.The Special Reserve School Resource Officer Act passed by the House on a 68-23 vote despite concerns raised by opponents over the safety and liability allowing armed teachers. 

"Our children are grossly unprotected from an active violent threat," said Rep. Mark McCullough, R-Sapulpa, who introduced the bill in part as a response to the deadly school shooting in Newtown, Conn. "We don't need to be willfully ignorant of the fact that this could happen." 

The bill would give districts the option of paying for teachers to receive a minimum of 120 hours of specialized training in order to carry a firearm into the school. The Council on Law Enforcement Education and Training would be directed to develop a specialized training course for volunteer teachers. 

Some members questioned whether 120 hours is adequate training for a teacher to be able to carry a gun around children. . . .