All students must use three open-source applications to present a topic covered in class, with presentations usually occurring on Fridays unless arranged otherwise with the teacher. The document lists several open-source applications that could be used for the presentations, including Prezi, MyHeritage, Animoto, Wallwisher, Wordle, Tagxedo, Makebeliefscomix, SurveyMonkey, Polleverywhere, Juxio, and Xtranormal.