Goalbook, in conjunction with WestEd and D.C. Public Schools, conducted an impact evaluation to examine how the Universal Design for Learning (UDL) framework influences instructional design and facilitates differentiated lesson planning utilizing instructional coaching support. UDL is a framework that guides educators to differentiate instruction by designing lessons that offer multiple means of access to rigorous learning objectives. Goalbook provides instructional resources within a technology platform that empower teachers to align their planning to rigorous learning standards. Goalbook uses the principles of the UDL framework to guide the support and resources provided to educators. This investigation addressed the following questions: (1) What impact does the UDL framework have on classroom practice and (2), how can districts support teachers’ use of UDL in classrooms?