Several decades of research have suggested a meaningful relationship between time and learning, where the amount of time students spend engaged in learning is strongly associated with their level of achievement. Among schools that have expanded the day and/or year, researchers have found that such a strategy can be quite effective, especially with…

A study examining state-mandated time requirements for kindergarten through twelfth-grade physical education found a wide span, ranging from impressive commitments to dismally brief time allocations. About 60 percent of states had no guidelines or required fewer than 300 hours for the 13 years of schooling. (CB)