There's been an improvement in reading and math scores among many student groups in the U-S. The assessment by the National Assessment of Educational Progress finds the most significant improvement came among nine-year-olds. That group scored higher on average in 2004 than in any other assessment year. Thirteen-year-old students turned in higher math scores than in any previous assessment year. And while overall performance by 17-year-olds was virtually unchanged, the report says black and Hispanic students made progress.