Getting a project team to both understand and support the scope of a proposed project is arguable the most important task a project manager should focus on at the start of a new project initiative. Decisions about project scope can impact the composition of the project team, and serves as the basis for subsequent cost and schedule estimation. There are many benefits to engaging the project team in the planning and scope definition process. In this presentation I will describe a simple tool (e.g., “The Project One-pager”) that I use for documenting the scope of a project. The tool consists of six basic elements. I will describe how I integrate this tool in an iterative and collaborative project planning process, to ensure that the project starts off on the right foot.