What do you need in a Power Point presentation?

I hold a power point for the first time, when I take my own laptop and want to show a video, all I need is a projector and speaker that the teacher can bring, right?

Exactly!

And you'll need something else: a hands-on rehearsal to see if you can work flawlessly with the equipment your teacher brings, and if everything works.

Cables for speakers and beamer fit? Do you know which keys on the laptop cause the projection over the beamer?

No, which keys are they?

I think that depends on the laptop, some in the Reieh with the f-keys. Since you can select diplay, beamer, beamer and display alternately.