Teaching aids are devices that present educational content visually or audibly to help students learn. They supplement the spoken word by making learning more engaging, vivid, and memorable. Teaching aids involve using multiple senses which helps clarify concepts and interpretations. There are various types of teaching aids including basic aids like chalkboards, printed materials like books and newspapers, visual aids like models and diagrams, audio aids like recordings and radios, and audiovisual aids like films and television. Teachers should devise teaching aids that explain concepts in their subject area to enhance learning.