Universal Design is an approach to teaching that aims to include all students by presenting information in multiple formats and motivating students through lessons that can be understood in individual ways. It has three main principles: presenting material through different means, assessing what students know in flexible ways, and engaging students in learning. The process involves identifying needs, involving consumers, adopting standards, applying guidelines, planning accommodations, providing training, and evaluating outcomes. Key principles are making content equitable, flexible, simple, perceptible with different senses, tolerant of errors, requiring low physical effort, and allowing adequate space.