I had not even thought about this, but I think it has a place in our presentation
Wolfram Demonstrations
Wolfram Research (the company that makes Mathematica) has amassed a collection of over 5,000 interactive demonstrations in mathematics, physics, engineering, chemistry, computing, and other subjects. The Wolfram Demonstrations run on Mathematica Player (a free download). You must download the individual demonstrations before you can interact with them. Often I will use one of the demonstrations in a video, moving the slider bars as I discuss the changes we are seeing in the graph
How to do Laundry
Good PPT presentations
includes many ideas for visual, hearing, color-blind,etc disabled people