Presentation planning should begin with planning a good story. The slide and graphics to support the telling of that story come second.
Many pros suggest beginning with sticky notes, each with one thought written on it. Index cards would do the same trick. Brainstorm various ideas, quotes, facts, graphic and other visual reminders onto these placeholders.
There are at least two benefits to this:
One, you’ll more easily see the big picture, helping you arrange a point-by-point connection between Point A and Point B.
Two, unless you’re a wizard with using computer-based graphics and shapes, it’ll likely be much easier to sketch out visualizations that communicate key points, making it easier to figure out what to do when you open PowerPoint.
Start outside your presentation software. Start on paper.