“…By "environmental self-regulation", the learner adapts material means and local conditions of his or her learning environment (Zimmerman, 2000). Depending on the self-evaluation of his or her difficulties in solving the task, the learner mobilizes his or her social environment through communicative solicitations: either he or she regulates a partner's behaviour, by requesting help or a demonstration, in need, by searching for approval of his or her actions; or he or she initiates referential joint attention on the task with the partner (Bandura, 1997;Bruner, 1983;DeCooke & Brownell, 1999;Heckhausen, 1988;Nelson-Le-Gall et al, 1990;Pressley, 1995;Puustinen, 1998;Rogoff, 1990;Stipek et al, 1992;Szepkouski, Gauvain, & Carberry, 1994;Wertsch et al, 1980;Winnykamen, 1993;Wood & Wood, 1999;Zimmerman, 2000).…”