The head of Tulsa's public schools says he's done talking about the state's controversial new grading system.
Dr. Keith Ballard sent that message in an open letter to parents Friday.
"After today, I will no longer talk about the A-F school grading system. It is flawed, and I stand by my earlier comments that these grades are not an accurate representation of the work being done in our schools," Ballard wrote.
The state board of education voted unanimously Thursday to certify results of the new system.
Grades were released for all Oklahoma public schools on the state's website.
"There is too much positive activity going on at Tulsa Public Schools and too much work to do to become focused on an arbitrary and capricious grading system. It was decided by Barresi well in advance about how many A's, B's, C's, D's and F's there would be and adjustments were made to the formula to ensure that outcome," Ballard continued.
You can read the full letter in images to the right of this story
Lauren Chamberlain scored three runs and hit a three-run homer Sunday to help Oklahoma to a 14-1 victory over Arkansas to win the Norman Regional. Oklahoma (50-4) advances to a Super Regional and willMore >>
Oklahoma (50-4) advances to a Super Regional and will meet Texas A&M - those games will be played in Norman.More >>
(BIG12SPORTS.COM) - Regular season champion Kansas State enters the 2013 Phillips 66 Big 12 Baseball Championship as the No. 1 seed. The event is set for Wednesday, May 22-Sunday, May 26, at ChickasawMore >>
The winner of the 2013 Phillips 66 Big 12 Baseball Championship earns the league's automatic bid into the 2013 Division I NCAA Baseball Championship.More >>
Angelina Jolie says that she has had a preventive double mastectomy after learning she carried a gene that made it extremely likely she would get breast cancer.More >>
"I hope that other women can benefit from my experience," Angelina Jolie wrote in a powerful op-ed article Tuesday, explaining her decision to go public with having her breasts removed to avoid cancer.More >>
Britain's Prince Harry is headed to the New Jersey shore to visit two communities hard hit by Superstorm Sandy.More >>
Britain's Prince Harry toured two New Jersey shore communities devastated by Superstorm Sandy, shaking hands with emergency personnel and construction workers before spending Tuesday afternoon in New York City at events...More >>