Start with the end in mind.
Write a learning objective that refines what you are going to teach. Be sure your learning objective can be accomplished in 3-5 minutes of teaching. If you would like a deep dive into writing learning objectives, please watch the following video:
example - "In this video, you will be able to add video-overlays in Camtasia to call-out keyboard shortcuts."
Write one or two sentences introduction to your training.
What are you going to teach? Why is this important.
Example: "In order to help visual learners better understand the keyboard shortcuts we are using in a training we will display them in the lower third of the screen. In this video, I'll show you how to do this using text overlays in Camtasia."