criticized poor and urban schools and challenged the conceptions of what could be considered a successful school. The ideas explored in his Horace Trilogy supply much of the foundation of the Coalition of Essential Schools. Theodore frequently collaborated with his spouse and fellow educator Nancy Faust Sizer. After Brown University, the couple took a one-year position during the 1998–99 school year as co-principals of the Francis W. Parker Charter Essential School, which Ted helped found and served as a Trustee. Deborah Meier joined the couple in authoring Keeping School, based on the Parker experience. From 1997 through 2006, Sizer returned to the Harvard Graduate School of Education as a visiting professor. He and Nancy co-taught a course on redesigning the American secondary school, while he continued to work on the issues of integrating the multiple services that low socio-economic status families need in poor communities. Sizer was a member of both the American Academy of Arts and Sciences and the American Philosophical Society. Theodore and Nancy Faust wed in 1955 and had four children together. He died at age 77 on October 21, 2009 at his home in Harvard, Massachusetts due to colon cancer. Works The Age of the Academies (1964) Secondary Schools at the Turn of the Century (1964) Places for Learning, Places for Joy (1973) Horace's Compromise: The Dilemma of the American High School (1984) Horace's School: Redesigning the American High School (1992) Horace's Hope: What Works for the American High School (1997) The Students Are Watching: Schools and the Moral Contract (1999, co-authored with Nancy Sizer) Keeping School: Letters to Families from Principals of Two Small Schools (2003, co-authored with Deborah Meier & Nancy Faust Sizer) The Red Pencil: Convictions From Experience in Education (2004) The New American High School (2013, posthumously) References External links Theodore R. Sizer Papers, 1939-2009, John Hay Library, Brown University 20th-century American non-fiction writers Deaths from cancer in Massachusetts Deaths from colorectal cancer Harvard Graduate School of Education alumni Yale University alumni Brown University faculty Harvard Graduate School of Education faculty United States Army officers 1932 births 2009 deaths Coalition of Essential Schools Writers from New Haven, Connecticut People from Harvard, Massachusetts Schoolteachers from Massachusetts 20th-century American educators Members of the American Philosophical Society 20th-century American male writers Military personnel from Massachusetts