This document discusses different types of learning media including visual media like graphics and models, audio media such as radio and audio cassettes, audio-visual media like video and computers, and projection media including transparencies and slides. It also describes general characteristics of these media such as whether they are fixative, distributive, or manipulative as well as characteristics based on their specific classification such as some graphic media being silent or some projection media including audio. The document provides an overview of types and traits of different learning media resources.