Moderate to high percentages of Wake County Public School (WCPSS) students demonstrated grade-level performance on K-5 assessments in 2009-10. Results indicate very slight changes from prior years. The percentage of students proficient in reading book level and mathematics strands increased very slightly since 2007-08. Modest declines in proficiency were found in reading strands and expressive literacy assessments. Most students continue to meet unassisted writing sample standards, although the percentages of students mastering writing content or writing conventions were slightly lower than rates in 2007-08. Annual trends show modest increases in student subgroup performance. Reading book level and mathematics achievement gaps still exist yet are slowly narrowing among subgroups.