How to combine collaboration scripts and heuristic worked examples to foster mathematical argumentation - when working memory matters. - Matthias Schwaighofer; Freydis Vogel; Ingo Kollar; Stefan Ufer; Anselm Strohmaier; Ilka Terwedow; Sarah Ottinger; Kristina M. Reiss; Frank Fischer 001 (Int. J. Comput. Support. Collab. Learn., 2017)