This guide is for high school and elementary projectors only. To see the guide for the middle schools, click here.

Follow this guide to set the optimal resolution for the projector.

Step 1: Plug in your projector.

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Step 2: Open “System Preferences” from the Apple menu in the menu bar.

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Step 3: Open “Displays” from the System Preferences window.

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Step 4: Press and hold down the “option” key on your keyboard. Note: If you use an external or Windows keyboard, this key may only be labeled “Alt”

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Step 5: While continuing to hold down the “option” key, click on the circle labeled “Scaled” Note: Your projector may show up differently than the following photos; however, the steps are the same for any display or projector.

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Step 6: Try the resolutions listed until you find one that you think looks good on your board.

Step 7: Wait for the projector to adjust to the resolution, and then you are done!