“…Three studies look at formal learning contexts, such as school or university courses (Kulavuz-Onal & Vásquez, 2018;Priego & Liaw, 2017;van Deusen-Scholl, 2018), with the rest discussing informal or non-formal social media practices (informal Facebook practices: Chen, 2013; Schreiber, 2015; non-formal blogging: Melo-Pfeifer, 2015; not applicable: Lew & Szarowska, 2017;Ortega, 2017). Most studies look at adults, often university students (Chen, 2013;Lew & Szarowska, 2017;Schreiber, 2015;van Deusen-Scholl, 2018; nonuniversity adults: Melo-Pfeifer, 2015), with only two studies looking at any school context (Kulavuz-Onal & Vásquez, 2018;Priego & Liaw, 2017), and no studies looking specifically at younger learners (primary age or below). Although some papers argue that what has been observed in informal contexts or with adults can and should inform teaching practice at schools (e.g.…”