PRO TIP: By the way, if you do school assemblies, showing a different screen to the audience is a great way to keep them engaged. It means I can quickly switch from a PowerPoint presentation to a Google doc to a YouTube video to another computer program just by clicking and dragging. Using an extended desktop means that I can work on things and get applications ready on my computer screen before showing it to students on the (second) screen which is projected. It takes a little bit of time to get used to, and sometimes, it can be hard to find the mouse, but I like having the extra screen real estate. If I drag my mouse far enough to the side on one screen, it’ll jump over to my second screen. I have my computer set up with an extended display so it’s like having two connected computer screens side-by-side. In fact, you can show different content on your laptop vs your projector / TV. (Or, you don’t have to show students everything on your computer screen when you are using a computer projector.) How to Show One Desktop Screen but Use Another Basically, you get two monitors connected to your laptop / computer.) (Or, choose “EXTEND” to show a different display on the TV screen. Choose “DUPLICATE” to project your computer to the TV screen. This will pop up a sidebar on the right side of your Windows screen. Click on the WINDOWS KEY and letter P.Make sure you changed the TV source to the correct HDMI port that you plugged it into.If the TV says “NO INPUT” or something like that and it doesn’t show your computer on the TV screen….This means you’ll see exactly the same thing on both screens. Your Windows laptop should automatically start projecting (mirroring) the laptop screen onto that TV screen.Switch it to the HDMI port that you plugged it into.You will probably need to get into the menu settings to choose the SOURCE.If your TV screen has several places to plug in the HDMI cable, then you need to pay attention to where you plug it in.Connect your laptop to your TV screen using the HDMI cable.This way, students can use HDMI cables to connect chromebooks or Windows laptops to the monitors to show their group what they’ve been working on. NOTE: I use five 32″ TV screens in my classroom spread around the room. These instructions about projecting your laptop to a TV monitors require more modern laptops and TV monitors. SOURCE: Collaboration Lesson Plan How to Project Computer to TV Screen You have one screen on your laptop or chromebook, and you have a different screen on the projector. Source: Effective Communication Lesson plan This is what an “Extended Display” looks like. This is what most teachers do – they show the same screen on their teacher laptop and the classroom projector. How to show one desktop screen, but use another.How to Project a Different Display on Laptop Screen and Projector / TV Table of Contents Psst:This trick will work whether you’re trying to display a different screen on your projector screen, a TV, or a second monitor on your desk. 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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