This is my first public lesson and I want the material to be as accessible as possible and describe all the necessary information. Do you have any tips?

The presentation should be designed so that the listener does not get bored. Also, pay attention to the color scheme - it shouldn't hurt your eyes from too bright colors.

As far as I know, there are no special requirements for classroom presentations. In your case, it's important to understand who the lesson is for. For children or for adults. On this basis, choose a design. Cool templates for presentations you can find on Loveslides. It will also depend on how to present the information. In any case, try to make your presentation interesting.