A simple and effective way of improving your PowerPoint presentations is to write the words you want to say before you open up PowerPoint to start creating the supporting slides. A common temptation when asked to deliver a presentation is to launch PowerPoint and start putting words and pictures onto PowerPoint slides, treating PowerPoint as a speech writing tool. The result is your supporting visual aids become the focus of the presentation. PowerPoint is a visual aid, it’s there to support the message you are trying to drive home to your audience. To prevent your slides from containing your entire speech and dominating your presentation you must determine how you will structure the message, what you want to say, and the information you need to cover to achieve the aim of the presentation. Only when you have done that should start creating your slides.
The most effective way of do this is to leave the computer switched off and return to the primitive method of Pen and paper. You can scribble, cross out, or move things around until you are happy. Only when you are happy should you open PowerPoint and start preparing slides to display on screen.