The teacher's putting on his ceremonial dress to deliver his last lesson and coming even of the villagers to attend his class show that the people suddenly realise that their language is extremely precious to them. Franz regrets for not having taken his lessons seriously. Even his teacher regrets for not having taken his teaching seriously. The teacher con demns his countrymen for not paying proper attention to the education of their children. All these facts show that they suddenly realise the importance of their language. When people come to know that their own language, French will no longer be taught in their schools and they will be forced to read German instead, they get emotional. It happens because the importance of their own language suddenly dawns upon them.