read it in english

What your Calculus teacher says before an evaluation, typically to indicate difficult wording of a word problem or just to tell their students not to be dumb in a subtle way. Usually said with a disappointed-i'm-praying-for-you look. Also commonly paired with "read it in full" or "read it twice".

Calc teacher: Related rates is not hard, just read the problem in full and read it in english
Student: *Crying*
Calc teacher: Not my problem if you didn't do the homework

WOW!

What your AP calculus teacher writes on your question when you get a zero and do the whole thing wrong.

Guy 1: Yo my calc teacher wrote WOW! on my test
Guy 2: Oh good job
Guy 3: I got the whole thing wrong...it makes me feel worse about myself

collocation

Words that sound good together, typically something that a native english speaker would easily understand because the phrase is used a lot. Context is key to understanding these phrases.

Exp 1. "Strong tea" is a collocation

Exp 2. "No real solutions" refers to an equation
Exp 3. There is a difference between using "impossible" and "undefined"