This article argues that the instructional scaffolding metaphor may be reconceived as distributed scaffolding when multiple means of influence are provided in a service-learning setting. In the service-learning course described here, the professor's role is largely as designer of activity settings for preservice teacher candidates, through which the students construct their own conceptions of teaching culturally diverse populations. The course involves a set of interrelated settings: a tutoring experience at the city's alternative high school; the reading of books from a menu of texts that cover a range of diversity topics; the discussion of these books in book club meetings independent of the professor's direct influence; and the whole-class discussion of these texts, led by each student book club. The distributed nature of the course scaffolding is illustrated with an excerpt from one book club's discussion.