As mentioned in another tutorial, your iPad has a fixed screen resolution in pixels, by default. So the question is, "can you change your iPad screen resolution?" The answer is yes and no, as you'll learn in this tutorial. No, because Apple doesn't currently support multiple screen resolutions on the iPad - in other words, the 1024x768 pixels resolution for the iPad display (monitor) is fixed, except to the extent that you can rotate to invert height and width (and their respective resolution sizes). But your iPad also comes in with an accessibility feature that allows you to zoom in and zoom out from the image currently on screen with a couple finger gestures.
This is how you enable zooming in and out for your iPad screen:
First, "minimize" all your apps by clicking on the Home button, as shown on the screenshot on the left. This will show your Home screens, in which you'll need to find the "Settings" icon - a triple gear button.

iPad Tip: Keep in mind that several applications actually include the screen resolution changing functionality built-in. This is separate from the global screen resolution, which is customized (or not) at the iPad device level itself. Never hesitate to email app developers ideas (like ability to change screen resolution) that make their applications more competitive and feature rich.