Take Notes with the Apple Pencil
The iPad Pro supports the Apple Pencil. This makes it easy to write notes on the iPad, and it can be a better way to quickly input information and retain it than typing on the screen or the keyboard.
You'll need to buy an Apple Pencil, which is normally $99. You can buy it at Amazon for $94.88. From there you can write and draw on your iPad screen. If you have the 2018 iPad Pro, you need to buy the second gen Apple Pencil for $129.
This is much better than using an older stylus with a soft plastic nub. You can take notes almost like you would with a pen. There is a pointed tip that glides across the iPad screen easily, but with enough resistance to make writing easy.
You can also draw and sketch with artistic effects thanks to the ability for the iPad Pro and Apple Pencil to communicate different amounts of pressure.