Under the high school accountability system, all of Osceola County high schools earned an "A" or "B" letter grade for the 2011-12 school year.

Gateway, Harmony, Osceola, St. Cloud High schools, Osceola County School for the Arts, and PATHS all earned “A” grades. Liberty, Poinciana and Celebration each earned a “B”. Only Celebration went from an “A” to a “B”.

The revised high school grading formula includes FCAT performance in reading, math, writing, and science; college readiness in reading and math as measured by SAT, ACT and PERT standardized tests, participation and performance in rigorous courses like advanced placement, dual enrollment, international baccalaureate and industry certification classes and overall graduation rate and at-risk graduation rate.

Superintendent Melba Luciano lauded staff for its work in earning these grades.

"Congratulations to all teachers, administrators, support staff, students, and parents on the exciting news of the high school grades," she said. "Given the numerous changes in the high school grading formula, such positive results show that our Osceola schools have done a tremendous job of raising expectations and expanding opportunities for all of our students. I am confident that we are on the right path to prepare our students to compete at the highest levels and become successful."