In 1983, the U.S. Department of Education report, "A Nation at Risk," found that about 13 percent of 17-year-olds were functionally illiterate, SAT scores were dropping, and students needed an increased array of remedial courses in college. Such trends threatened opportunities for American children and the collective national future.…

Calls for more school instructional time are coming from multiple quarters. Academic standards and frequent assessments have changed the nature, but not the length, of the instructional day. Schools find themselves "robbing Peter to pay Paul," taking time from the arts, recess, and physical education to give to reading and math, subjects that…