Notes in Fallout 76 can be found scattered across Appalachia, and can contain scraps of lore, the stories of those who once lived in West Virginia, and various other information.
Transcript for Straight As
Oh my god. Bert did it - he stole Principal Laraby's office key! If we're lucky, we'll be able to slip in there after class and change our grades. After the bell at three o'clock, grab the key from the locker next to the showers and meet us at his door. Straight A's here we come!
Where to find Straight As
At the Morgantown High School, in a locker in the hallway outside the classroom with a hole in its floor.