Quoted: In their book, The Political Classroom: Evidence and Ethics in Democratic Education, Diana E. Hess and Paula McAvoy offer guidelines to these and other questions, using a study they conducted from 2005 to 2009. It involved 21 teachers in 35 schools and their 1,001 students. Hess is the dean of the school of education at the University of Wisconsin-Madison, and McAvoy is the program director at UW-Madison’s Center for Ethics and Education.