Debating Teacher Certification

To kick off a week-long online debate between Education Sector's Kevin Carey and David Ritchey of the Association of Teacher Educators, the blog Edspresso posed the question:

"All who wish to teach must receive some form of credentialing or certification before they can begin their careers. Is the practice helping to improve student achievement?"

For Carey and Ritchey's answers to this question and more, read the full online debate at Edspresso.