Double Vision? Dual-Source Display

imagesPepperdine University School of Law (Malibu, CA) spent several months planning and designing a classroom upgrade, fondly called the educational technology update (or ETU).

To summarize the updates, Pepperdine University added a classroom PC, BluRay Player, VGA and HDMI connection for laptops, built-in speakers, document camera, and lecture capture system to each room. These sources are all controlled by a touch control panel.

Each classroom was equipped with two or more projection display screens. One major decision faced by the School of Law Information Services team during the planning phase was whether or not dual-source projection should be used.

The norm for classrooms across the nation is the use of single-source display. This display setup is when there are two screens in a classroom, but the same content is shown on each. For example, a PC with a PowerPoint presentation running is displayed on both of the screens simultaneously.

Alternatively, dual-source projection allows for two unique sources to be shown at the same time. For instance, a DVD can be played in the DVD player on the left display screen, while the PC with a PowerPoint presentation running is displayed on the right screen.

The benefit of this dual-source projection?

Instructors and presenters don’t lose valuable lecture time switching between sources. Setting up the sources before the lesson so that they are ready to go, results in an easy flow of content. Instructors and presenters can speak about the content on the left screen and then seamlessly flow to the content on the right screen. Otherwise, the instructor would need to stop mid-lesson to disable the source that is currently showing on the screens and enable the second source. For those instructors that are not technological confident, this switching of content mid-lesson could prove to be anxious, cumbersome, and time-consuming.

Another benefit to the dual-source projection is that instructors still have the option to display a single source on both projection screens. Displaying a single-source on both screens is recommended for those instructors who are using only one piece of content, such as a video, to aid in their lecture. Using both projection screens with the same source displayed will increase the sight-lines of the classroom.

The decision of Pepperdine University School of Law to use dual-source projection has so far been beneficial. There has been increase usage of the educational technology this Fall 2013 term compared to past semesters. In addition, the development of an easy-to-use control interface has resulted in instructors being autonomous in their course setup, relying less on support from the Information Services Department.


About Julie Tausend Burba

Instructional Designer at Hulu, Ed Tech and Project Management enthusiast. MBA Technology Management, MS Management, BS Communications, Traveler and Cook.

Posted on September 19, 2013, in Tausend Talks Shop, Teaching Tools, Technology Management and tagged , , , . Bookmark the permalink. Leave a comment.

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