How to Disable Multitasking Slide Screen on IPad
For the most part, multitasking on iPad is a great addition , but depending on how you use iPad, the new feature can be more annoying than productivity-boosting. OS X Daily reminds us that you can turn it off.
You can turn off iPad multitasking completely by going to Settings> General> Multitasking. Turn off the “Allow multiple apps” switch. This will disable the Slide Over and Split Screen modes. Obviously, this isn’t useful for everyone, but if you’re not using Slide Over and are annoyed by accidentally tapping on it, there is at least a way to turn it off.
How to Disable Sidebar Slide on iPad | OS X Daily