Codelyy

Well, not necessarily stage, but in front of the classroom.

I'd prepare the presentation and complete it. Then I'd begin rehearsing, first by reading all your notes and then slowly practice speaking while not looking at your presentation.

Practice every day until then, so the speaking points are at least memorized so you canrecover from a stumble. Don't think about their reaction during the presentation. Be somewhat passionate about what you're talking about: or at least interested init yourself.