Answer:
Monsieur Hamel's actions contribute to the development of both the theme and main idea within the story because he wants to show the students that no matter the circumstances, they should remember to not let the lessons they've learned go to waste.
In paragraph 30, it states,
"Thereupon he turned to the blackboard, took a piece of chalk, and, bearing on with all his might, he wrote in the largest letters he could: “VIVE LA FRANCE!”
Monsieur Hamel does not want the students to feel discouraged about the new life that they'll be forced into. He wants them to not forget everything and for them to continue learning French.
