In the Spirit of Ella: The Algebra Project and the Organizing Tradition of the Civil Rights Movement -- Algebra and Civil Rights? -- Learning from Ella: Lessons from Mississippi, ca. 1961 -- Standin' at the Crossroads: From Voter Registration to Political Party -- Radical Equations: The Story of a Grassroots Education Movement -- Bouncing a Ball: The Early Days of the Algebra Project -- Pedagogy: The Experience of Teachers and Students -- South Again -- Weldon, North Carolina: The Spirit of Ella Baker -- Shaping Demand: The Young People's Project -- The Mathematics of Trips.