Xamarin Workbooks 

Xamarin Workbooks provides a blend of documentation and code that is perfect for experimentation, learning, and creating guides and teaching aids.

Create a rich C# workbook for Android, iOS, Mac, WPF, or Console, and get instant live results as you learn these APIs. Use workbooks to create live documents with C# code for experimenting, teaching, training or exploring. You can use Workbooks as a standalone application, separate from your IDE. The code editing window provides code completion, syntax coloring, inline live-diagnostics, and multi-line statement support.