You should get the points before the student discount and coupons are applied.
Example...
Bill comes to $75.00
You'll get 7,500 PC Points
You'll get $7.50 off (Not all items are eligible of course)
Use coupons for $10.00
Your final total OOP is $50.00
Source - I have the student discount as well and used points offers and coupons in combo with the 10% frequently!

