This document discusses different types of charts and flashcards that can be used as visual aids in teaching. It defines charts as visual representations that depict key information systematically to summarize, compare, or explain concepts. The main types of charts discussed are narrative, cause-and-effect, chain, evolution, strip tease, pull, flow, and tabulation charts. Flashcards are defined as pictured cards that are displayed sequentially to teach students. Their purposes are to teach students, provide health education, and be used in small group discussions. Principles for creating effective flashcards and guidelines for their use in the classroom are also outlined.