I think this movie shows how Russ did not know what culture he was being introduced into. He learned how he can’t treat all cultures like his own, everyone has their own traditions and they need to be considered and accommodated when teaching students.
At the beginning of the movie when the principal is telling Russ how student attendance is minimal because of the seasons or other home requirements.
Russ was not aware of the hardships these students and their families faced, and continue to face with poverties and generational abuse
Russ learns how to find external motivation for the students of his class to attend and put in an effort to succeed in his class
He learned how to use all of his student's strengths to come together as a team and as a community to fundraise for the teams trip to Toronto