For diseases of the bone, see bone disease and osteology. Osteopathy is a type of alternative medicine, also called pseudomedicine, that emphasizes massage and other physical manipulation of muscle tissue and bones. People practicing osteopathy are referred to as osteopathic practitioners.
I categorize each of the slides into âflashâ, âfastâ, or âdescriptiveâ. Flash slides take about 30 seconds to deliver, fast slides take about a minute, and descriptive slides about 3 minutes. Then, using these rough estimates, I can calculate how long it should take to make the presentation.
Using Time to Determine the Right Number of Slides. 1  1. Practice your presentation in front of a mirror or a small audience of friends and family before you do it for real. 2  2. Think about the speed at which you speak. 3  3. Do not use too many slides.  4. Do not use too few slides.