Founded by Mary Murphy, Endowed Professor of Psychological and Brain Sciences at Indiana University Bloomington, the Equity Accelerator (EA) is a focused research organization that harnesses research, practice, and policy to create more equitable learning and working environments, from college to careers. This grant supports efforts by EA to enhance and improve its Classroom Practices Library (CPL), a collection of evidence-based resources created to help educators craft learning environments that promote a sense of belonging and support learning among students. Grant funds will support the development of an interactive online course on how to create inclusive, welcoming educational environments. Composed of a series of modules and informed both by existing CPL resources and by extensive user feedback, the course will cover a series of important topics, including student-centered course policies, how to take a growth mindset approach, and how to create a classroom environment where students feel welcome and safe in their identities. Other grant funds will support technology platform development; iterative, feedback-based improvement of the new course; and outreach and dissemination activities.