The purpose of this article is to introduce the unit-structured diagram and a professional development workshop using the diagram. The diagram consists of three areas, including objectives, content, and assessment. The objectives section is an area to identify learning outcomes based on physical education national standards. In the section of content, a unit is broken down into lessons. Teachers identify what to and when to evaluate student learning in the assessment section. The workshop using this diagram is underpinned by three premises of quality professional development: active engagement, specific tasks, and collaboration. The workshop can be modified to address the different needs of teachers.