Introduction: Inside the Black Box -- Part I. Lower and Middle Schools. Progressively Maintaining the Middle: Hillel Torah Day School, Skokie, Illinois -- A Forward-Looking Community School: Hillel Day School, Detroit, Michigan -- The School as a Gateway: Brandeis Marin, San Rafael, California -- Nurturing Students' Reflectiveness and Wellness: The Pressman Academy, Los Angeles, California -- Doing More with Less: Akiva School, Nashville, Tennessee -- Part II. High Schools. Recentering the Centrist Orthodox Day School: Rav Teitz Mesivta Academy, Elizabeth, New Jersey -- It's All in a Name: The Anne & Max Tanenbaum Community Hebrew Academy of Toronto, Toronto, Canada -- Part III. K-12 Schools. How a Day School Transforms Itself: Hebrew Academy (rasg), Miami Beach, Florida -- The Yeshiva as Teiva (Ark): Yeshiva Darchei Torah, Far Rockaway, New York -- Conclusion: Vital Jewish Day Schools.