
I didn't want you ending up
with a bad GRADE and get discouraged...
The Big Bang Theory Season 6, Episode 6

I was done with Latin by fifth GRADE.
The Big Bang Theory Season 3, Episode 2

Which brings us to 10th GRADE.
The Big Bang Theory Season 2, Episode 12

Pink wine and pizza bagels!
It's like eighth GRADE all over again!
The Big Bang Theory Season 10, Episode 13

Oh, I think that's below the pay GRADE
of an Imperial officer.
The Big Bang Theory Season 8, Episode 19