Need to show your students a tiny QuickTime video from a website? Or do you need to show students elements of a document? Try using your ZOOM tool on your Mac.
First, enable the zoom mode by pressing the APPLE + OPTION + 8 keys OR to SYSTEM PREFERENCES in the Apple Menu > UNIVERSAL ACCESS. Then turn the zoom on.
Next, press APPLE, OPTION, and +(Plus) to turn the zoom on, and APPLE, OPTION, and -(Minus) to turn the zoom off.