The iPad generally never needs to be shutdown, but it does need to be rebooted once in a while. You do this by either holding the power button on the top right corner until the iPad presents you with the Slide to power off screen, or you can follow these instructions to perform a “soft reset”. This is also useful in those rare cases when your iPad freezes or you’re struggling with a new iOS update.
1. Hold the top (power) and bottom front (home) button for about five seconds and your iPad will restart.
2. Keep holding this two buttons until you see the silver Apple logo, and then release both.
If you have an app that is misbehaving, you can force-quit the app by holding the home button by itself for a few seconds.