To Record your iPad screen
1. Go to Settings > Control Center > Customize Controls, then tap next to Screen Recording.
2. On iPad with iOS 12 or later, swipe down from the upper-right corner of the screen to access Controls.
3. Press deeply (long press) on to see the recording options menu. Tap the microphone if you would like to record audio. Tap Start Recording, then wait for the three-second countdown. Your iPad screen (and audio if you turned the microphone on).
To STOP the recording tap the red "recording" status bar at the top of your screen and tap Stop.
Your screen recording is saved in the Photos app.