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Direct linkGamble-Risley, Michelle – T.H.E. Journal, 2006
In the past, projection systems were large, heavy, and unwieldy and cost $3,000 to $5,000. Setup was fraught with the challenges of multiple wires plugged into the backs of desktop computers, often causing confusion about what went where. Systems were sometimes so difficult to set up that teachers had to spend pre-class time putting them together.…
Descriptors: Projection Equipment, Check Lists, Computer Uses in Education, Audiovisual Aids
