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Direct linkAshkenazi, Sarit; Mark-Zigdon, Nitza; Henik, Avishai – Cognitive Development, 2009
Children in third and fourth grades suffering from developmental dyscalculia (DD) and typically developing children were asked to compare numbers to a standard. In two separate blocks, they were asked to compare a number between 1 and 9 to 5, or a two-digit number between 10 and 99 to 55. In the single-digit comparisons, DD children were…
Descriptors: Control Groups, Reaction Time, Learning Disabilities, Mathematics Skills
Amsel, Eric; Trionfi, Gabriel; Campbell, Richard – Cognitive Development, 2005
The present study explores how suppositions which conflict with accepted beliefs are represented and reasoned about. Two studies test the predictions regarding the nature and developmental changes in children's ability to represent and reason about hypothetical or make-believe suppositions which violate their everyday knowledge and beliefs. In…
Descriptors: Cognitive Processes, Play, Thinking Skills, Beliefs
