http://www.desmoinesregister.com/article/20091122/OPINION03/911220311/1035/archive/Use-student-achievement-to-measure-teachers
http://www.desmoinesregister.com/article/20091122/OPINION01/911220312/1035/archive/Protect-students-instead-of-teachers
http://www.desmoinesregister.com/article/20091122/OPINION01/911220316/1035/archive/Guest-column-Spread-new-respect-for-competition-around
http://www.desmoinesregister.com/article/20091122/OPINION01/911220313/1035/archive/Q&A-Let-s-make-sure-we-employ-good-teachers
