When giving an introduction in German in a classroom — especially as a student — the setting usually leans toward a semi-formal tone. You'll want to include key details such as your name, age, where you're from, what you study, and possibly your interests.

Here's a sample format:

Hallo! Ich heiße Daniel. Ich bin 20 Jahre alt und komme aus Brasilien. Ich studiere Informatik an der Universität München. In meiner Freizeit spiele ich gern Fußball. Ich freue mich, hier zu sein!

This type of classroom introduction in German shows both basic sentence structure and your ability to communicate personal information. It also sets the stage for peer interaction. Teachers may also ask follow-up questions, so it's good to be prepared with responses like "Ich verstehe" (I understand) or "Könnten Sie das bitte wiederholen?" (Could you repeat that, please?).