I just installed Ubuntu 15.04 and I like it so far.
I'm definitely no computer expert, much less a linux one, but I wanted to pop in to remind you that he may have online work to do for his classes.
For example, Moodle is one that many schools use to set up online message boards for each class. It relies on Silverlight. Not sure of his level of linux knowledge, but I thought I would mention that you might need to sign into to his online classrooms and test that he can post, view lectures, and take exams if he has to do any of that. When I was at NCSU, I found that Moodle was terribly buggy, regardless of the OS. Every semester, it seemed like one of us couldn't log into our exams or some such. And a lot of my classmates were Computer Science majors! Fingers crossed that his school is old-school!
Machine: Toshiba Portege r705-P41, Dual Boot: MS Windows 7 Home Premium 64-bit; Ubuntu 15.04
CPU: Intel Core i5 460M @ 2.53GHz Arrandale 32nm Technology,
RAM: 4.0GB Dual-Channel DDR3 @ 532MHz (7-7-7-20), Motherboard: TOSHIBA Portable PC (rBGA1288 Socket)
Video Card: Intel HD Graphics Revision 2 1720 MBytes