Slides from my Koli Calling 2013 presentation: Petri Ihantola, Juha Helminen, Ville Karavirta (2013). How to Practice Programming on Mobile Touch Devices - Interactive Python Code Exercises. In: Koli Calling ’13: Proceedings of the 13th Koli Calling International Conference on Computing Education Research. Koli, Finland: ACM, pp. 51-58. http://dx.doi.org/10.1145/2526968.2526974