This document discusses the importance and use of resource material in teaching. It defines resource material teaching as teaching using concrete examples and hands-on learning to help students understand concepts from the physical to the abstract. Common resource materials include books, magazines, models, and technology like overhead projectors. Using resource materials engages students, clarifies concepts, encourages direct experience, and accommodates different learning styles. Selecting the right material for the topic and students' abilities is important to make teaching most effective. The document emphasizes that a positive and well-prepared teacher is the greatest resource who can utilize materials to create an active learning environment.