This report is a compilation of reprinted Executive Summaries from the reading, mathematics, and writing report cards based upon data collected in 2007. The reports provide national, state, and district-level results, as well as trends for different student groups such as gender, race/ethnicity, students with disabilities (SD), English language learners (ELL), and socioeconomic status. At a Glance also takes a closer look at the types of students who participated in the 2007 assessments. Results are reported by scale scores and by achievement levels. Scale scores report what students know and can do on National Assessment of Educational Progress (NAEP) assessments. NAEP results are generally reported on 0-300 or 0-500 point scales, and are developed independently for each subject. Achievement levels, which reflect what students should know and be able to do, are reported as percentages of students performing below the Basic level (partial mastery of prerequisite knowledge and skills that are fundamental for proficient work at a given grade), at or above the Basic and Proficient (solid academic performance; demonstrated competency over challenging subject matter) levels, and at the Advanced (superior performance) level. An overview of other major reports released in 2007 is included.