For educators to be successful in ensuring that students are college-and career-ready, they must have high-quality professional learning. This article describes how the foundation and guidance for evaluating the impact of professional learning can be enhanced with the "Standards for Professional Learning Tool" (Learning Forward, 2011). This tool contributes to a cycle of professional learning that changes the knowledge and skills of educators and improves student outcomes. When professional learning is standards-based, it has greater potential to change what educators know, are able to do, and believe. When educators' knowledge, skills, and dispositions change, they have a broader repertoire of effective strategies to use to adapt their practices to meet performance expectations and student learning needs. When educator practice improves, students have a greater likelihood of achieving results. When student results improve, the cycle repeats for continuous improvement. If educators are not achieving the results they want, they determine what changes in practice are needed and then what knowledge, skills, and dispositions are needed to make the desired changes. They then consider how to apply the standards so that they can engage in the learning needed to strengthen their practice.