1. Howard Gardner, The Unschooled Mind: How Children Think and How Schools Should Teach (New York: Basic Books, 1991).
2. Judith A. Kelley and Elsa Bailey, with Gina Corwin, Retrospective Study on the Impact of CESAME's Teacher Innovation Program (TIP) 1992–1997 (Cambridge, Mass.: Lesley College Program Evaluation and Research Group, 1997).