As a UW-Madison Student you have access to Lynda.com.  However, logging in can be a bit strange.  I have found the best method is to click login, then click “Organization Login” and click “Not sure how to log in”.  This seems to work consistently for me.

From here, there are many good Unity tutorials.  For example:

Unity 5.4: New Features
https://www.lynda.com/course-tutorials/Unity-5-5-New-Features-3D-Artists/474420-2.html

Unity 5: 3D Essential Training
http://www.lynda.com/Unity-tutorials/Unity-5-3D-Essential-Training/383666-2.html

Materials and Lighting in Unity
https://www.lynda.com/Unity-tutorials/Materials-Lighting-Unity/133342-2.html