“…Prinsen et al collaboration can be hindered by either too much or too little guidance (Dillenbourg & Tchounikine, 2007). Elaboration is proposed in the literature as a possible mechanism through which productive interactions and, consequently, learning gains are stimulated (Krol, Janssen, Veenman, & Van der Linden, 2004;Van der Meijden, 2005;Webb & Farivar, 1999). Elaborating includes being explicit, making distinctions, clarifying one's thoughts, providing examples and illustrations, adding details, providing explanations, and justifying one's position.…”