Universal Design is an approach to teaching that aims to engage students with different learning styles and from diverse cultures. It has three main principles: 1) providing multiple means of representation so students can perceive information in different ways, 2) allowing for multiple means of action and expression so students can demonstrate knowledge in different formats, and 3) providing multiple means of engagement so all types of learners can be interested and motivated. The goal is to design inclusive learning experiences through techniques like hands-on activities, alternative assessments, flexible timing, and independent learning.