Universal Design principles can really be categorized into three best practices. The first is representation. That means using a variety of methods to present content. That would be such as lectures and videos, texts, web resources for example. The second is expression. This is allowing your students to show their knowledge in a variety of ways. You could test them. You could give them assignments. You could have discussion boards or presentations or even group work projects. The third is engagement. This means using a variety of teaching methods in one's class. And these could include things such as case methods, debates, discussions, reflections or class activities and demonstrations.