“…Usual school mathematics refers to the pervasive form in which mathematics has been and continues to be taught in schools in the UK (Boaler, 1997a(Boaler, ,1999(Boaler, , 2000Boaler & Greeno, 2002;Boaler, Wiliam & Zevenbergen, 2000;Boylan, 2004;Cotton, 1998;Ernest, 1998;Mendick, 2006;Nardi & Steward, 2003) and, in spite of the recent reform movement, in the US (Anderson, 1997;Cobb, Wood, Yackel, & McNeal, 1992;Gregg, 1995;Stigler & Hiebert, 1997). Many aspects of usual school mathematics are common features of the way mathematics is taught in schools elsewhere.…”