 In 2011, 94 percent of the 500 Pennsylvania public school districts achieved the No Child Left Behind Act progress level of 72% of students reading on grade level and 67% of students demonstrating on grade level math.In 2011, 46.9 percent of Pennsylvania school districts achieved Adequate Yearly Progress (AYP) based on student performance.An additional 37.8 percent of school districts made AYP based on a calculated method called safe harbor, 8.2 percent on the growth model and 0.8 percent on a two-year average performance.