It seems like the author is using kenning, because instead of saying "teacher", they're using "grade-giver".
so the poetic devise is kenning
hope this helps :)
How old are you i need it to write this
The answers are
A
B
B
A
B
B
B
A
C
D
E
F
G
Each line is a new letter
I think we would be open to new ideas and more efficient ways <span />