In response to requests for a sample of my scripting materials, i.e., a "try-before-you-buy" type of arrangement, I am providing this sample material. Because of the class structure, it was pretty nigh unto impossible to start each lecture on a chapter boundary; therefore, this lecture begins at the portion of Chapter 3 regarding constants. I hope it gives an adequate representation of how this course is taught. The files contained in the zip archive is chapter 3 of the lecture, as well as the 3rd class in the series. Enjoy.