But no one knows about his secret past in Algeria or the reasons that brought him to Canada.
And no one is aware of his personal fight to stay in Canada.
Lazhar manages to put his own issues aside to help the children work through their demons.
One particular pupil, Simon, poses a significant hurdle as he was the one who found Lachance and blames himself for her death.
Simon takes his troubles out on his fellow students and his new teacher.
Lazhar sees parallels between his own life and struggles and the grief his students are going through.
Subtitled from French, Monsieur Lazhar is a poignant story of death and dealing with its aftermath.
Monsieur Lazhar
(M) 94 minutes
Rating: 3 / 5