Check out public/teaching_jasmine.pptx for the slideshow.
app/assets/javascripts/incremental_app/contains files that build on the previous one.spec/javascripts/incremental_specs/contains Jasmine specs for each of those files.
Note that some of these examples are rather contrived; instead of being good examples of TDD, these were thrown together quickly as examples of how to accomplish specific goals with Jasmine.