1. Write the one sentence
Finish this: "By the end, I want them to believe that ___." One sentence, one belief. If you cannot write it, you do not have a presentation yet. Everything you say either supports that sentence or gets cut.
2. Pick three supports
Three reasons, three examples, three steps — three is what an audience can hold. Write each as a full sentence, not a topic word. "Costs" is a topic; "We cut delivery cost by a third in the pilot" is a support.
3. Open with the audience, not with you
Skip "Hi, I'm X and today I'll talk about Y." Start with something they recognise: a moment, a number, a question they have been asking. Then say your one sentence. Attention is highest in the first fifteen seconds; spend it on them.
4. Close by asking
Repeat the one sentence in different words, then ask for the thing: a decision, a meeting, a change. A close that trails off with "so, yeah, that's it" hands the room back without a result.
5. Say it out loud once
Structure on paper is not structure in the mouth. Record a run-through, even a rough one. You will hear where it drags and where the supports are in the wrong order. In Speechzy the AI also shows you pace and filler words, which usually spike exactly where the structure is weak.