The national educational crisis can be solved by practical yet inexpensive methods, according to Carl Sommer. Shortly after becoming a high school teacher, he found serious limitations with the education his students received. He probed into the reasons why some schools were successful, even among traditionally low-achieving children, while so many others failed to provide students with a proper education. He interviewed parents, students, teachers, assistant principals, and principals. For 10 years he researched to find solutions for the problems facing American education. One basic reason for the massive educational decline, Sommer believes, is that many administrators have embraced progressive policies, such as: not encouraging reasonable educational standards for both students and teachers, lack of concern over students' deficiency in the basics, and permitting unqualified children to advance automatically from grade to grade.