Educators are finding that as the visual impact of their material increases, so do their chances of connecting with each student. They’re using tools borrowed from the business world, such as digital projectors powered by LCD and DLP® technologies, to foster that connection: the spark of learning known as the elusive “teaching moment.”
Key factors to consider before making a final
decision on your projector include:
• Brightness – Lamp brightness is critical. In general, projectors that are rated more than 2000 ANSI lumens are recommended; however, the price increases with the brightness. Over 3000 ANSI lumens for mounted projectors is recommended.
• Resolution – A desirable minimum standard is native 1024 x 768 XGA.
• Noise levels – Choose a unit that will operate quietly in a classroom
• Maximum projected image size – particularly for larger rooms, check that the data projector is able to display the full image size required from the floor or ceiling mounting positions that are accessible.
• Speakers – Most data projectors have a basic internal speaker, but for the best quality stereo or surround sound (e.g. for playback of a DVD movie), check that there is an option to connect external speakers.
• Networking – Newer projectors allow for network connections monitoring the projector’s lamp hours and projector status; to delivering content to the projector over the network.
• Zoom feature – is a convenient way to reduce or enlarge the image size (without needing to move the projector closer or further from the screen).
• Wireless remote control – Great for presenter freedom, remotes can control the projector from different parts of the room (including while in the audience), and it can include options such as magnify, blank screen, menu, laser pointer, etc.