This report presents results of the 2011 National Assessment of Educational Progress (NAEP) in mathematics at grades 4 and 8. Results for students in the nation, the 50 states, the District of Columbia, and Department of Defense schools are reported as average scores and as percentages of students performing at or above three achievement levels: Basic, Proficient, and Advanced. Scores are also reported at selected percentiles, showing changes in the performance of lower-, middle-, and higher-performing students. Results for groups of students defined by various background characteristics (e.g., race/ethnicity, gender, and students' eligibility for free or reduced-price school lunch) are included, as well as sample assessment questions with examples of student responses. Additional technical notes and appendix tables provide information on NAEP samples, school and student participation rates, the exclusion and accommodation of students with disabilities and English language learners, and additional state-level results. Highlights of the national results show higher average mathematics scores in 2011 than in the eight earlier assessment years at both grades 4 and 8. At grade 4, the average score in 2011 was 1 point higher than in 2009, and 28 points higher than the first assessment in 1990. At grade 8, the average score in 2011 was 1 point higher than in 2009, and 21 points higher than in 1990. State results for grade 4 show higher scores in 2011 than in 2009 for 9 states and jurisdictions, and a lower score for 1 state. At grade 8, scores were higher in 2011 than in 2009 for 13 states and jurisdictions, and lower for 1 state.
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