In the most recent release of Unity 2017.2 Beta, Unity added a new feature for interactive tutorials. Basically these are step by step beginner tutorials that run directly in the Unity engine and introduce basic concepts like running your scene or present scenarios where you need to fix a problem within an existing project. They are accessible in the Learn tab when you first launch Unity.
If you want more information, I take a hands on look at this new feature in this video:
Again, you need to be running Unity 2017.2 beta or higher in order to have access to the interactive tutorials. You can download the latest beta here.