Once you figure out how to do this (and to switch between different display modes), it opens up a whole new world! (Like lesson prep, marking, or emails while your class is watching something on the projector / TV.) This is the default setting…īut it’s pretty easy to have your computer show one screen on your external TV / projector screen, and an entirely different desktop screen on your laptop. Most teachers (and people in general) only know how to duplicate (mirror) their computer screens onto the projector – this means that students can see on the classroom big screen whatever the teacher can see on their laptop / computer screen. It’s important to know how to show a different display on your laptop screen vs projector screen Back then, I was one of the only classrooms in my school to have my own projector… because I bought it myself. FYI: When I first wrote this post in 2013, I used Dragon Naturally Speaking to dictate to my computer to type down what I said. How to project computer to TV article was last updated: Nov 24, 2019.
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