Your script is what you want to say. You should write out precisely what you want to say and edit it until perfect.You should never read your script nor attempt to memorise it. You should put away to your script to allow you to rehearse effectively. A great script is only the foundation of a great presentation.
The basis of a great presentation is the story (p1). It is the conversion of the “what” of the data into the “so what” for the specific audience and time. Your script is the distillation of knowledge, passion and insight designed not for teaching but for learning. It is the culmination of planning. To prepare this takes a significant amount of time, creativity and effort. It never “just happens”.
Your script is never the first the first draft, never simply a collection of notes or ideas and never a vague plan to be made up on the day. Your script must be a complete document, edited on multiple occasions over time by addition and subtraction, constrained rigidly to 80% of your allocated time and ideally critiqued by your presentation buddy. It should be a perfected item, never just a hope or idea.
Your script is never supportive media (p2). It must never appear on the screen shown to the audience or they will simply read it; this is educationally invalid. Your script must never appear in the presenter notes
or you will simply read it. Your script needs to be converted into a storyboard that is then illustrated. This will support the message of p1.
Your script is not what is delivered to the audience. That is a recitation, a play or movie. The script can only be used at the very first rehearsal. After that, the script should only be an item of reference. The audience do not hold a copy of the script nor expect that the delivery would adhere to that. Nor should the presenter hold a copy in their pocket. Using the script on stage during delivery will hugely degrade engagement with the audience. The best presentation is a performance interpreting the p1 and p2 as finalised at the last rehearsal.
What is then delivered in a great presentation is a reflection of preparation and performance. Failure to write out and edit a script means that the message is not as good as it might be. As the presentation is neither a data download nor a recitation, adherence to a script is not required. Preparation and practise render the script secondary to the ultimate delivery of the message not individual words. A great script is only the foundation of a great presentation.