This document discusses different types of instructional materials and aids that can be used to improve teaching and learning. It identifies printed materials like textbooks, workbooks and reference books. It also discusses supplemental materials provided to teachers, and sounds and visual resources like films, videos and audio recordings. Pictures, pictorials, photographs and drawings are mentioned as a way to show students what something looks like. Symbolic and graphic representations like maps, charts, diagrams and graphs are outlined. Finally, it briefly touches on microcomputer resources including hardware, software, and networking tools. The overall purpose is to provide examples of different instructional materials that can be used in the classroom to stimulate interest and clarify subjects for students.