This document discusses the importance of technology in the classroom and provides tips for its effective use. It notes that technology is a window to the future and audio/visual enhancements can benefit learning. Talking books and optical media help auditory learners, while digital projectors, document cameras, and overhead projectors are common classroom visual technologies. The document recommends following principles of relevance, consistency, proportion, and unity when incorporating visual elements and provides additional tips for preparing engaging technology-based lessons and presentations.