Instructional materials play an important role in science education by enriching the learning process and making it more meaningful. They include both print materials like textbooks and workbooks as well as non-print items like real objects, pictures, videos, and technology. Effective instructional materials provide core information to engage students, and should be carefully selected based on content breadth and depth to optimize learning. Some examples of materials discussed are writing boards, printed texts, pictures, real objects, graphic organizers, dioramas, bulletin boards, and technology tools like PowerPoint, videos, and overhead projectors.