Introduction:
In the chapter "The Last Lesson" by Alphonse Daudet, M Hamel, the French teacher, tries to make his students realize the importance of learning their own language.

Explanation:
M Hamel, the French teacher, makes the people realize the importance of learning their own language in the following ways:

1. Surprise announcement: M Hamel makes a surprise announcement that it was the last French lesson, and it was the last time the students would hear him speak in French. This announcement makes the students realize the value of their language and the importance of learning it.

2. Explanation of importance: M Hamel explains to the students the importance of their language and how it was a part of their heritage. He tells them that their language was the most beautiful language in the world, and they should be proud of it.

3. Personal experience: M Hamel shares his personal experience of how he regretted not learning German when he had the chance. He tells the students that they should not make the same mistake and should learn their language while they still have the opportunity.

4. Emotional appeal: M Hamel makes an emotional appeal to the students by telling them that they would always remember the last lesson and how they should cherish their language and culture. He tells them that their language was a part of their identity and losing it would mean losing a part of themselves.

Conclusion:
M Hamel, the French teacher, tries to make the people realize the importance of learning their own language by making a surprise announcement, explaining the importance, sharing his personal experience, and making an emotional appeal. His efforts make the students realize the value of their language, and they vow to continue learning it even after M Hamel leaves.