To create Split View, open an app and then swipe up from the bottom of the iPad. This will bring the Dock up and you can grab one of those apps and drag it to the left or right of the screen. When you would like to see full screen of your original app, just swipe the Split View App to the right. When needed you can "grab" the app from the right by swiping it over.
Embedded below is a 1 minute and 27 second YouTube tutorial.