I usually talk about introductory Scilab, Scilab for Control Systems, Data Acquisition and Ordinary Differential Equations. I can also talk about Linear Algebra, Least Square Data-Fitting, Symbolic Computations, Plotting and Polynomials, among other topics, given enough notice.
You can view a list of past and upcoming workshops at Scilab.in.
Click here view and download the basic level spoken tutorials for Scilab. Click here to download all the basic level spoken tutorials for Scilab in one file.
Click here to view and download the advanced level spoken tutorials for Scilab.
If you wish to organize a workshop on Scilab, you might find it worthwhile to read this checklist.