145
Orwig, 2015.
146
Kirschner, Sweller and Clark, 2006.
147
Renken and Nunez, 2010; Klahr and Nigam, 2004.
148
Clement, 1993.
149
Clement, 1993.
150
Clement, Brown and Zietsman, 1989.
151
Андреа ДиСесса — профессор педагогики и автор книги Turtle Geometry («Геометрия черепахи»). Прим. ред.
152
DiSessa, 2008.
153
Harrison, 1981.
154
Couprie, 2011.
155
Nussbaum and Novak, 1976; Vosniadou and Brewer, 1992.
156
Vosniadou and Brewer, 1992, 1994; Vosniadou, Skopeliti and Ikospentaki, 2004, 2005; Diakidoy, Vosniadou and Hawks, 1997; Samarapungavan, Vosniadou and Brewer, 1996.
