PIERRE -- South Dakota's reading and math assessment scores for twelfth graders have stagnated.
The state's results between 2009 and 2013 reflect national averages, which have also leveled off.
U.S. Education Secretary Arne Duncan says educational stagnation is troubling.
South Dakota is one of 11 states piloting a national assessment called the Nation's Report Card by National Assessment of Educational Progress. It's the largest assessment of what America's students know and can do in different subjects.
The percentages of South Dakota students above the proficient level in math and reading in 2013 were higher than the national average.
Twenty eight percent of South Dakota twelfth graders were more than proficient in math compared to the 25 percent nationally. And 39 percent were proficient in reading compared to the 36 percent nationally.
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