head banging

Somehow 13 students in the slower class think that they can wear me down.  "Why we gotta learn this, I'll never need this."

They are trying to pull me into an argument.  Their problem is I know this game.  A calm, "you are in this class and this is the curriculum."  I am not going to argue, you need this for life or need to know or how do you know you don't need it or anything  else.

What you guys think that "oh yea, you do not need this, chill out for the rest of the year."