In this chapter, the following terms have the meanings indicated. Terms Defined. “Materials” means the various media used by: Educators to present and assess learning content; and Students to demonstrate knowledge and skill. “Universal Design for Learning (UDL)” means a research-based framework for curriculum design, that includes goals, methods, materials, and assessments to reduce barriers to learning by providing students multiple accessible support options for: Acquiring information and knowledge; Demonstrating knowledge and skills in alternative forms of action and expression; and Engaging in learning.