Sarah Mostow was hired to provide professional development to a group of 10 elementary art teachers who worked at a charter school network in New York City. Searching for what she could offer the charter school teachers, who possessed diverse backgrounds and teaching styles, she wanted to find a structure they could adapt. She decided to distill the approach into a simple formula: One Material, One Category, One Question. Offer students one material at a time in 4- to 6-week units: collage, tempera, construction, clay, drawing, and printmaking materials. Choose one of the following "categories" or subject matter groups: (1) focused explorations; (2) basic imagery; or (3) personal motivations. At the beginning of class, ask a motivating question. This article outlines this approach and how the teachers were able to adapt to it.