Hey! Your companion in the presentation-jungle here again.
Now we will go into what you may have thought that the whole of this course would be about: slides.
But first, I wonder: Do you really need slides? Have you tried using props instead?
Some of my customers used two 1.5 meters (1.6 yards) high glass tubes instead of the bar graph to show the difference between the ingredients in two different types of cement. The ingredients were symbolized by different sorts of candy. They exhibited the glass tubes in the foyer after the presentation so that the audience could taste the different "cement ingredients".
Consider whether it is something in your presentation that can be symbolized with props instead of slides?
Not too bad, right?