You could use the display for IR classes, to explain the RMI, compasses, HSI etc.
I am as good to explain all that on a classroom board with drawings.
As far as "practice instrument flying" - forget it.
Now of course, there will be 187 kids who play with PC simulators who will tell you the opposite.
Well, I am a 747 captain, 23,000 hrs, and TRE... are they...?
xxx
Repeat after me - PC simulators are worthless.
If they were that good, you could "log" instruction received on these...
Happy contrails