Is there a mac utility that can magnify parts of the screen? For some teaching efforts, especially running through tutorials, I'd like to zoom in on parts of my screen to show a room-full of people small text from the projected screen. Is there an OS X utility that will magnify sections of the screen as I move my cursor over it? I know about OmniDazzle but the magnifier is somewhat clunky.
Go to System Preferences, then Accessibility. There will be a column on the left for Zoom, which you can use a keyboard shortcut to activate.



Once activated, hitting ⌥-⌘-+ will zoom the screen.