Also, illustrations allow you to show exploded views or views normally not seen, such as interiors. The Document Camera is one of the most versatile and often used devices. Using it correctly can greatly enhance a lecture. Create your documents with big, simple fonts. Use the biggest fonts possible.
Larger fonts are easier to read.
Use the Zoom feature. Zoom in so the words are as big and well-framed as possible. Avoid unnecessary white space or unused paper. Move the paper around. Instead of zooming out so the entire paper is visible, zoom in to the current part, then move the paper as necessary.