D.C. officials released summary results of annual standardized tests Thursday morning, but just as interesting to many parents and policymakers are the results of individual schools.

School-by-school results, posted here, show a wide variation in performance among both traditional and charter schools.

Drew Elementary, for example, saw an astonishing 34-point gain in math and an 18-point gain in reading. Tubman Elementary saw the opposite trend: a 24-point decline in math and a 14-point loss in reading. Langley, C.W. Harris and Bruce Monroe at Park View elementaries also saw double-digit declines in both subjects.

Among charters, D.C. Prep’s Benning campus, Friendship Collegiate Academy and Hope Community-Lamond all saw double-digit increases in both subjects. Charters that saw equally large decreases in both subjects included Community Academy’s Butler Global campus, Roots and Booker T. Washington.