Selina Kyle teaches fifth grade in an inner-city school. The students in the district have not performed well on standardized tests and the school board is proposing changes in order to increase the amount of academic time students spend in the classroom. If the changes are approved, Miss Kyle's fifth graders will no longer have a recess during the school day. Selina has researched this matter and wants to address the school board. What points might she make from her research that are likely to influence the board's decision