Lessons from research and practice -- Introduction -- Can school improvement reduce inequality? : lessons from research -- Origins of the model: lessons from practice (1989-1998) -- A model of instructional practice and school organization -- Organizing principles of the University of Chicago Charter School (2008-2012) -- Designing reading instruction to overcome educational inequality / coauthor: Molly Branson Thayer -- Designing math instruction to overcome educational inequality / coauthors: Debbie A. Leslie, Sarah Burns, and Andy Isaacs -- Organizing the school to support ambitious instruction / coauthor: Tamara Gathright-Fritz -- Impact and implications -- The impact of attending an ambitious elementary school / coauthor: Daniel Schwartz -- Producing knowledge for school improvement