The Atlas Protocol is one of the most commonly used structured dialogue formats among schools to facilitate a conversation about data for teachers and other members of the faculty. Learning from Data is a tool to guide groups of teachers discovering what students, educators, and the public understands and how they are thinking. The tool, developed by Eric Buchovecky, is based in part on the work of the Leadership for Urban Mathematics Project and of the Assessment Communities of Teachers Project. The tool also draws on the work of Steve Seidel and Evangeline Harris-Stefanakis of Project Zero at Harvard University. The protocol gives a detailed step by step guide on how to prepare and conduct a healthy, productive conversation about and with use of data. It starts with a selection of datasets that do not lead to a single conclusion and generally lead to rich conversations. From that point forward, the protocol describes 6 stages the group has to follow with the help of a facilitator in