The Promise of Preschool: Why We Need Early Education for All, by W. Steven Barnett & Ellen Frede, American Educator, Spring 2010, American Federation of Teachers

language and literacy, math, science, social studies, and the arts. A high-quality program also helps facilitate children’s social, emotional, moral, and physical development, as well as helps shape their attitudes, beliefs, dispositions, and habits. In rigorous studies, preschools that have demonstrated the largest social and academic gains for children employ well-paid teachers who hold at least a bachelor’s degree, and offer relatively small class sizes. They support teachers through expert supervision and professional development focused on their classroom performance. By W. Steven Barnett and Ellen Frede