With decreasing enrollment, decreasing funding for public school education, changes in family and societal needs, and the mandates of the No Child Left Behind Act, policymakers and school leaders are wrestling with reforms to the school calendar and instructional time spent in the classroom, with the goal of increasing student achievement.…

This report by the American Federation of Teachers (AFT) is the first comprehensive effort to assess student achievement in public schools managed by Mosaica Education, Inc., one of the leading private management companies in education, marketing itself to charter boards and school districts since 1997. Schools examined in the report had been…