One of the greatest challenges we face as an early childhood professional community is providing short-term, affordable professional development that results in depth of understanding and change of practice. The University of Wyoming Early Childhood Summer Institute is a model for professional development that fosters reflection, inquiry, and change in beliefs and practice for early childhood practitioners. The 3-day Institute has an innovative structure and constructivist quality that allows for intense, authentic learning among participants. The research reported in this article supports this claim and clarifies key components of the model critical to the transfer of knowledge gained through the Institute to application in the workplace. In a 6-month follow-up study after the Institute, participants, Institute facilitators, and keynote speakers describe how the Institute has continued to influence their beliefs and practice over time.