South Park Spanish Fishsticks What Movie Is This South Park Episode About?

What movie is this South Park episode about? - south park spanish fishsticks

I remember a film that reminds me of this episode in Spanish .. It is, as Professor Calculus Advanced Mexican boy teaches children math, hard, and they all get 100, and accused of fraud ....
http://www.southparkstudios.com/clips/16 ...
[Part of the episode that reminds me]