- Material as a self-tutorThis learning materials are designed to help students learn independently without constant guidance from a teacher. The materials include explanations, exercises, and possibly answers or feedback that allow students to assess their own progress. This encourages learners to take responsibility for their learning and helps them evaluate their understanding of the subject matter.- Material as learning aidsIn this role, the materials serve as the primary tool for teaching and learning. They can be used with or without the presence of a teacher. These materials might include textbooks, worksheets, videos, or interactive exercises. Whether in a classroom setting or in self-study the materials are central to the learning process. They provide structure and content that guide students through the learning objectives.