“…The first two pedagogical strategies reduce processing demands on learners. Dual task and cognitive neuropsychological methodologies have produced evidence that analogical reasoning imposes high processing demands on the working memory and central executive systems for two aspects of analogical reasoning: representing and integrating relevant relations, and controlling attention to competitive, irrelevant information (e.g., Cho, Holyoak & Cannon, 2007;Halford, 1993;Halford, Wilson & Phillips, 1998;Krawczyk, Morrison et al, 2008;Richland, Morrison & Holyoak, 2006). In mathematics education, therefore, the instructor must be cognizant of children's developing working memory capacity that limits their ability to hold and manipulate complex representations in mind (English & Halford, 1995).…”