In this article, we introduce a model for preparing school counselors-in-training to conduct large group developmental guidance. Additionally, we present findings from a focus group and individual interviews evaluating participants' perceptions of the model. We identified 7 themes representing school counselors'-in-training perceptions of the model for large group guidance preparation: (a) practice facilitating guidance, (b) observing guidance in action, (c) planning for guidance lessons, (d) content and structure for preparing guidance lessons, (e) helpful guidance resources, (f) confidence in facilitating guidance, and (g) unique role in the school. We discuss implications for school counselor educators and supervisors.