A-F http://publicradiotulsa.org en A-F Delayed http://publicradiotulsa.org/post/f-delayed <p>OKLAHOMA CITY (AP) — The state Board of Education is delaying the release of a new system that grades Oklahoma's schools.</p><div><p>Officials had planned to release the new grades Monday, but the Board of Education voted to delay the release until its next meeting on Oct. 25.</p><p>The new system evaluates schools on an A-to-F grading scale.</p><p>Several school officials and superintendents oppose the new system and question the formula that's used to determine a school's letter grade.</p> Mon, 08 Oct 2012 17:54:41 +0000 Associated Press 27492 at http://publicradiotulsa.org A-F Delayed