“…Furthermore, this hypothesis parallels the dual representation hypothesis (DeLoache, 2000;Uttal, Scudder, & DeLoache, 1997), an empirically supported developmental hypothesis suggesting that young children, around 30 months of age, are often unaware that instructional manipulatives are representations of abstract contexts. As noted earlier, Greenhoot and Semb (2008) found analogous age-related differences in preschool students' ability to benefit from pictures provided with narratives. On the basis of these related findings, it is of considerable interest to identify developmental transitions in children's picture-processing and imagery-generation abilities.…”