This document discusses the benefits of using different forms of technology in the classroom, including overhead projectors, digital projectors, and document cameras. It explains that overhead projectors allow teachers to face students while teaching, create reusable transparencies, and write on transparencies during instruction. Digital projectors and document cameras can display images, video, and 3D objects for lessons. The document concludes that incorporating technology keeps students engaged, helps them remember lessons through visuals, and outlines how the author plans to use a digital projector, overhead projector, and video study guides.