On rap and hip-hop -- Teach a new way -- From 1520 Sedgwick to the world : masked but not erased -- We are hip-hop and school is not -- Negotiating the terrain of cultural misalignment -- Blame and power in urban science education -- From the global to the local : hip-hop, science education, and the ritual -- Moving beyond the silence ... we're droppin' science -- Reframing urban science education.