Are you using QuickTime Player?
QuickTime Player isn't just for playing movies; you can also use it to create videos, screencasts, and record from your iPhone or iPad. It is a great way to create videos or mini-tutorials for students.
To Create a Movie Recording
-Open QuickTime Player
-Select File-new movie recording
-Select the red circle to begin recording
To Create a Screen Recording
Check out this screen recording to see how.
-Open QuickTime Player
-Select File-new screen recording
-Select the red circle
-Choose to record the entire screen or drag the crosshairs to only record part of the screen.
To Record From Your iPad or Show Your iPad Screen
-Open QuickTime Player
-Select new movie recording
-Select the name of the device you would like to record from
-The screen of that device will appear on your screen
-Click the red circle to record
-Follow these same steps to show your iPad and just don't select record