The Case for Improving and Expanding Time in School

Both research and practice indicate that adding time to the school day and/or year can have a meaningfully positive impact on student proficiency and upon a child’s entire educational experience. This survey of the research looks at how high-performing schools are using the extra time, particularly schools that serve large populations of low-income, at-risk students. Instructional time of at least 300 more annual hours than the conventional is one of the strongest predictors of higher achievement.